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Sight-Reading for Beginners: How to Improve Fast
For musicians at any level, sight-reading ranks among the most valuable skills you can develop. This ability to perform unfamiliar music accurately on first reading proves essential in countless situations—ensemble rehearsals, recording sessions, auditions, church services, pit orchestra work, and simply learning new repertoire efficiently. Yet for many beginners and even intermediate players, sight-reading feels intimidating, mysterious, or like a talent you either have or don’t.
The truth is far more encouraging: sight-reading isn’t about innate talent or musical genius. It’s a learnable skill built through strategy, consistent practice, pattern recognition, and the right mindset. With a systematic approach focusing on the most effective techniques, anyone can improve their sight-reading skills quickly and dramatically—often seeing measurable progress within just weeks of focused practice.
This comprehensive guide breaks down exactly what sight-reading is, why it matters, what distinguishes good sight-readers from struggling ones, and most importantly, the specific strategies and exercises that produce rapid improvement. Whether you’re a complete beginner just learning to read music or an intermediate player frustrated with your sight-reading abilities, these principles and practices will transform how you approach unfamiliar music.
What Is Sight-Reading and Why Does It Matter?
Sight-reading means performing music you’ve never seen or practiced before, reading directly from notation in real-time. It’s not about achieving perfect performance—it’s about accuracy, fluency, maintaining forward momentum, and capturing the music’s essential character despite encountering the material for the first time.
What Good Sight-Reading Looks Like
A proficient sight-reader demonstrates several key characteristics:
Continuous forward motion: The music keeps moving at relatively steady tempo without stopping or hesitating, even when mistakes occur
Rhythmic accuracy: Maintaining the pulse and getting rhythmic relationships substantially correct even if some pitches are wrong
Pattern recognition: Quickly identifying scales, arpeggios, intervals, and common harmonic progressions rather than processing each note individually
Anticipation: Eyes reading ahead of what’s being played, allowing the brain to prepare upcoming material
Recovery skills: When errors occur, quickly rejoining without losing tempo or disrupting the musical flow
Musical interpretation: Even on first reading, applying appropriate dynamics, phrasing, and stylistic awareness
Why Sight-Reading Skills Matter
Professional necessity: Many musical careers—from session work to orchestra positions to church music jobs—require strong sight-reading. Auditions frequently include sight-reading components that eliminate candidates with weak skills.
Learning efficiency: Strong sight-readers learn new music 3-5 times faster than weak readers, dramatically expanding repertoire and reducing practice time required for new pieces.
Ensemble participation: Playing in bands, orchestras, choirs, or chamber groups demands keeping pace with the ensemble regardless of personal familiarity with the music.
Musical independence: Sight-reading enables you to explore music independently without requiring recordings or teachers to demonstrate every piece.
Cognitive benefits: Research suggests sight-reading develops spatial reasoning, pattern recognition, multitasking, and other cognitive skills with benefits extending beyond music.
Career opportunities: Many lucrative musical opportunities—wedding gigs, theater pit orchestra work, session recording, church positions—go to musicians who can read fluently.
Understanding that sight-reading is a practical, learnable skill rather than mysterious talent removes psychological barriers and opens the door to systematic improvement.
The Fundamental Principles of Sight-Reading Success
Before diving into specific techniques, understanding the cognitive and perceptual principles underlying effective sight-reading helps you practice more intelligently.
The Eye-Brain-Fingers Connection
Sight-reading involves three simultaneous processes:
Visual processing: Eyes scan notation, identifying pitch, rhythm, articulation, and expressive markings
Cognitive processing: Brain interprets visual information, recognizes patterns, and plans motor actions
Motor execution: Fingers, breath, voice, or other physical mechanisms produce sound corresponding to notated music
In beginning readers, these processes occur sequentially—look at note, figure out what it is, then play it. This sequential processing creates slow, halting sight-reading.
Advanced readers integrate these processes nearly simultaneously through chunking (recognizing groups of notes as units), automaticity (instant recognition without conscious processing), and anticipation (preparing upcoming material while executing current material).
Pattern Recognition Over Note-by-Note Reading
Perhaps the single most important insight for improving sight-reading: stop reading individual notes and start reading patterns.
Music consists of recurring patterns—scales, arpeggios, intervals, rhythmic figures, harmonic progressions. Experienced sight-readers unconsciously recognize these patterns, processing entire groups of notes as units rather than individual symbols.
Consider reading language: you don’t process individual letters but recognize whole words, common phrases, and grammatical structures instantly. Musical sight-reading works identically—the goal is recognizing musical “words” and “phrases” rather than individual note “letters.”
The Crucial Role of Theoretical Knowledge
Strong sight-reading depends on solid music theory foundation. Understanding key signatures, chord construction, scale patterns, common progressions, and typical compositional structures allows you to predict what’s likely to happen next rather than treating each note as a surprise.
When you recognize that a passage is simply a D major scale, you can read it as a unified gesture rather than eight separate notes. When you see a chord progression moving I-IV-V-I, theoretical knowledge helps anticipate the harmonic direction.

Essential Technique #1: Develop the Ability to Read Ahead
The single most transformative sight-reading technique involves training your eyes to read ahead of what you’re currently playing. This “mental buffer” gives your brain processing time to prepare upcoming material, dramatically improving fluency and reducing errors.
Why Reading Ahead Matters
When your eyes focus on the note you’re currently playing, your brain has no time to prepare what comes next. You’re always reacting to information too late, causing hesitation, mistakes, and inability to maintain steady tempo.
Reading ahead creates temporal buffer—while playing measure 5, your eyes scan measure 6. By the time you reach measure 6, your brain has already processed that material, enabling smooth, confident execution.
Progressive Training Strategies
Stage 1: One note ahead (absolute beginners)
- Start with extremely simple material
- Practice keeping eyes consistently one note ahead of what you’re playing
- When this becomes automatic, progress to next stage
Stage 2: Two beats ahead (developing readers)
- In 4/4 time, keep eyes approximately two quarter notes ahead
- This requires processing speed to increase substantially
- Use moderately simple material that doesn’t overwhelm processing capacity
Stage 3: One measure ahead (advanced readers)
- Maintain one full measure gap between eyes and execution
- This represents professional-level reading-ahead ability
- Enables smooth handling of challenging material
Stage 4: Strategic scanning (expert readers)
- Eyes jump ahead to scan challenging passages, page turns, or important landmarks
- Can read several measures ahead in very simple material
- Adjusts reading-ahead distance based on musical complexity
Practical Exercises
Delayed reading exercise:
- Place simple sheet music in front of you
- Look at the first measure but don’t play immediately
- Look away from the music (close eyes or look elsewhere)
- Now play what you saw from memory
- Before finishing that measure, look at the next measure
- Continue this pattern
This forces you to process visual information separately from execution, building the reading-ahead neural pathways.
Cover-up exercise:
- Use a card to cover the measure you’re currently playing
- You can only see upcoming measures
- This physically prevents looking at current notes, forcing eyes forward
- Extremely challenging initially but powerfully effective
Duet partner reading:
- Work with a partner or teacher
- They play one measure behind you
- Your eyes must stay ahead to maintain the tempo relationship
- Creates social pressure to keep moving forward
Essential Technique #2: Master Rhythm First
Many sight-reading struggles stem not from pitch difficulties but from rhythmic uncertainty. Weak rhythm reading causes hesitation, tempo fluctuations, and general unsteadiness that make even pitch-accurate reading sound unmusical.
The Primacy of Rhythm
In actual performance, maintaining accurate rhythm matters more than perfect pitch. A performance with rhythmic integrity but occasional wrong notes sounds far more musical than one with correct pitches but shaky rhythm. Ensemble directors consistently report they’d rather work with rhythmically secure players who miss some notes than pitch-perfect players who can’t maintain steady time.
Rhythmic Reading Strategies
Pre-reading rhythm scan: Before attempting to play any new piece:
- Scan entire piece looking only at rhythm
- Identify unusual or challenging rhythmic figures
- Count or clap the rhythm without worrying about pitch
- Only after achieving rhythmic security should you add pitch
Subdivision awareness: Rather than thinking in large beats, think in smallest subdivision present:
- In 4/4 with eighth notes, think in eighth-note subdivision
- In 6/8 with sixteenth notes, think in sixteenth-note grid
- This creates more precise rhythmic placement
Metronome dependence (initially):
- Beginning sight-readers should always practice with metronome
- Choose comfortable tempo where rhythm can be accurate
- Gradually increase speed as proficiency develops
- Eventually wean off metronome for musical flexibility
Physical pulse maintenance:
- Tap foot, nod head, or sway body to internalize pulse
- Physical movement often helps rhythm feel more secure
- Some teachers discourage this for performance but it’s valuable for practice
Common Rhythmic Challenges and Solutions
Dotted rhythms: Practice saying “long-short” or “1-2-and” patterns until automatic
Syncopation: Consciously count through rests and off-beats rather than just playing what you see
Compound meter: Think in appropriate large beats (dotted quarter in 6/8) rather than trying to count every subdivision
Polyrhythm: Temporarily slow tempo enough to feel where patterns align, then gradually speed up
Changing time signatures: Mark time signature changes clearly, rehearse transitions between meters
Essential Technique #3: Recognize Patterns and Shapes
Transforming from note-by-note reader to pattern-recognizing reader represents the most significant leap in sight-reading development. Pattern recognition allows you to process music in chunks rather than individual symbols, dramatically increasing reading speed and accuracy.
Visual Pattern Recognition
Stepwise motion: Consecutive scale steps create recognizable visual lines moving up or down
Arpeggios: Chord tones create distinctive skip patterns that experienced readers recognize instantly
Repeated notes: Multiple notes on same line/space register as repetition pattern
Intervallic leaps: Common intervals (octaves, fifths, thirds) create recognizable visual relationships
Sequential patterns: Motives repeated at different pitch levels create visual sequences
Training Pattern Recognition
Interval drills:
- Practice identifying intervals visually without playing
- Flash cards showing two notes—identify interval before looking at answer
- Gradually increase speed until recognition becomes automatic
- Include both harmonic (simultaneous) and melodic (sequential) intervals
Chord identification:
- Practice recognizing common chords visually
- Flash cards showing major, minor, diminished, augmented triads in various inversions
- Progress to seventh chords and extensions
- Focus on recognizing chord shapes rather than calculating each note
Scale pattern practice:
- Practice all major and minor scales in all keys
- Not just to improve technique but to recognize scale patterns when sight-reading
- Include modes, chromatic scales, whole-tone scales
- Goal: instant recognition when these patterns appear in music
Melodic pattern library:
- Study common melodic patterns (turns, trills, grace notes, arpeggios)
- Learn to recognize these as units rather than individual notes
- Many etude books organize material by pattern type
Theoretical Pattern Recognition
Harmonic progressions: Recognizing I-IV-V-I or ii-V-I allows anticipating bass line and chord tones
Cadential formulas: Standard endings (authentic, plagal, deceptive) appear constantly
Modulation patterns: Common modulation techniques create predictable transitions
Form structures: Recognizing verse-chorus, ABA, sonata form helps anticipate what’s coming
Essential Technique #4: Never Stop—Keep Moving Forward
Perhaps the most psychologically difficult but practically essential sight-reading rule: never stop to fix mistakes. In ensemble performance, recording sessions, or auditions, the music continues regardless of individual errors. Training yourself to maintain forward momentum even through mistakes builds the resilience actual musical situations demand.
Why Stopping Is Counterproductive
Breaks rhythmic flow: Stopping destroys the most important element—steady pulse
Prevents recovery practice: You never develop skills for getting back on track after errors
Creates stop-and-start habit: Stopping once makes stopping again more likely
Misunderstands sight-reading purpose: Sight-reading isn’t about perfection but fluency
Undermines ensemble situations: Training yourself to stop makes you unreliable in group contexts
Developing Non-Stop Mentality
Permission to be imperfect: Explicitly tell yourself that mistakes are acceptable and expected during sight-reading practice
Focus on continuity: Make keeping music moving your top priority, above note accuracy
Skip and return: When encountering impossibly difficult passages, play what you can and skip what you can’t, maintaining rhythm
Anticipatory simplification: When scanning ahead reveals something too difficult, plan simplified version before arrival
Recovery drills: Deliberately introduce errors during practice, then practice quickly rejoining
Strategic Error Management
Drop out momentarily: Missing a beat entirely while maintaining pulse is better than stopping
Simplify difficult passages: Play simplified version (rhythmic approximation, fewer notes) rather than stopping
Prioritize rhythm over pitch: If choosing between accurate rhythm with wrong notes or accurate pitch with wrong rhythm, choose rhythm
Use anchor points: Identify strong beats, downbeats, or clear landmarks to rejoin if lost
Essential Technique #5: Build Strong Musical Fundamentals
Sight-reading difficulty often stems not from reading-specific problems but from weak underlying music fundamentals. Strengthening your general musical knowledge directly improves sight-reading capacity.
Core Theoretical Knowledge
Key signatures: Instant recognition of all major and minor key signatures
- Practice until seeing three sharps automatically means A major/F# minor
- Include both reading signatures and mentally listing the sharp/flat notes
Time signatures: Understanding what different time signatures mean rhythmically
- Know conducting patterns for common meters
- Understand compound versus simple meters
- Recognize less common signatures (5/4, 7/8, etc.)
Interval recognition: Instant visual identification of all intervals
- Both ascending and descending
- Both from specific reference notes and generically
- Include augmented and diminished intervals
Chord construction: Understanding how chords are built
- All triad types and inversions
- Seventh chord types
- Extended harmony basics
Standard notation elements: Fluency with all musical symbols
- Articulation markings
- Dynamic indications
- Tempo markings
- Ornaments and decorations
Technical Facility on Your Instrument
Scale fluency: Comfortable playing all scales in all keys
- Major scales
- Natural, harmonic, and melodic minor scales
- Modes (for advanced readers)
Arpeggio command: Facility with chord patterns
- Major, minor, diminished, augmented
- Seventh chord arpeggios
- Various fingering patterns
Position knowledge: Understanding your instrument’s geography
- For pianists: comfortable in all registers and positions
- For string players: shifting and position work
- For wind players: full range development
Technical patterns: Common fingering or bowing patterns automatic
- Scales, turns, trills, runs become reflexive
- Reduces cognitive load during sight-reading
Essential Technique #6: Practice Strategically and Consistently
Like learning language, sight-reading improves through consistent daily practice rather than occasional marathon sessions. However, practice quality matters as much as quantity—smart, focused practice produces faster results than mindless repetition.
Optimal Practice Structure
Daily short sessions: 10-15 minutes daily vastly outperforms 90 minutes weekly
- Builds habit and automaticity
- Prevents mental fatigue
- Allows consolidation between sessions
Fresh material always: Never sight-read the same piece twice
- Once you’ve read something, it’s no longer sight-reading
- Keep large library of appropriate-level material
- Use sight-reading books, download new pieces, or use apps generating exercises
Appropriate difficulty level: Material should challenge but not overwhelm
- Should make mistakes but still basically keep going
- Too easy doesn’t build skills; too hard causes discouragement
- Gradually increase difficulty as proficiency develops
Progressive difficulty structure: Within sessions, start easier and progress to more challenging
- Warm up with comfortable material
- Build confidence before attempting harder pieces
- End on achievable material for psychological success
Effective Practice Techniques
Timed reading exercises:
- Set timer for specific duration (2-3 minutes)
- Read continuously without stopping regardless of mistakes
- Forces forward momentum and prevents perfectionism
First-read analysis: Before playing, spend 30 seconds analyzing:
- Key signature and what it means
- Time signature and rhythmic character
- Tempo and style indications
- Challenging passages requiring planning
Recording and review:
- Record yourself sight-reading
- Listen back noting specific problem areas
- Don’t practice those pieces (defeats sight-reading purpose)
- Use observations to guide what fundamental skills need work
Varied material:
- Different composers and styles
- Various time periods
- Multiple genres
- Different technical challenges
- Keeps practice engaging and builds broad competency
Building Your Practice Library
Method books specifically for sight-reading:
- “Improve Your Sight-Reading!” series (various instruments)
- “A New Tune A Day” sight-reading supplements
- Grade-specific sight-reading collections
Real repertoire at easier levels:
- Pieces 2-3 levels below your technical ability
- Simplified versions of classical works
- Easy jazz, folk, pop arrangements
Duet and ensemble music:
- Provides rhythmic accountability
- Makes practice more engaging
- Reflects real musical situations
Online resources:
- IMSLP/Petrucci Music Library (free public domain music)
- 8notes.com (free sheet music at various levels)
- Apps like Sight Reading Factory (generate unlimited exercises)
Essential Technique #7: Leverage Technology and Modern Tools
Technology has revolutionized sight-reading practice, providing tools that previous generations couldn’t access. Modern apps and software can generate unlimited, appropriately-leveled exercises while providing immediate feedback.
Recommended Apps and Software
Sight Reading Factory (subscription-based):
- Generates unlimited exercises for any instrument
- Customizable difficulty, key, time signature, range
- Provides assessment of reading accuracy
- Gamification elements increase engagement
Complete Music Reading Trainer (free/premium):
- Note identification and interval training
- Rhythm reading exercises
- Multiple instruments and clefs
MusicTutor (iOS):
- Sight-reading exercises with increasing difficulty
- Real-time feedback using device microphone
- Tracks progress over time
Tenuto (iOS):
- Music theory drills supporting sight-reading
- Interval, chord, scale identification
- Rhythm exercises
NotateMe (sheet music reader):
- Photograph sheet music for digital conversion
- Helpful for building practice libraries
- Can slow down or transpose pieces
Using Technology Effectively
Supplement, don’t replace: Technology enhances but shouldn’t replace reading real music from paper
- Screen reading differs from paper reading
- Performance situations use printed music
- Balance both approaches
Immediate feedback value: Apps providing instant feedback accelerate learning
- Identifies specific weaknesses
- Prevents practicing mistakes
- Provides objective assessment
Gamification benefits: Game-like elements increase motivation
- Competition against self or others
- Achievement systems
- Progressive difficulty unlocking
Customization advantages: Ability to target specific weaknesses
- Practice only treble clef if bass clef is strong
- Focus on specific rhythmic challenges
- Isolate particular key signatures needing work
Essential Technique #8: Practice in Musical Contexts
While individual practice forms the foundation, reading with others or in performance-like situations accelerates improvement by adding pressure, accountability, and musical context that solo practice can’t replicate.
Ensemble Sight-Reading Benefits
Forced continuity: Group context provides social pressure maintaining forward momentum
Rhythmic accountability: Playing with others improves pulse stability and rhythmic accuracy
Musical context: Understanding your part’s role within larger texture deepens musical comprehension
Real-world simulation: Mirrors actual musical situations where sight-reading matters
Increased engagement: Social element makes practice more enjoyable and sustainable
Ways to Practice Ensemble Reading
Find reading partners: Regular duet or small ensemble sessions with similar-level musicians
Join community groups: Many community orchestras, bands, or choirs welcome participants explicitly for reading practice
Sight-reading clubs: Some music schools or communities organize regular sight-reading meet-ups
Online collaboration: Virtual ensemble platforms enable remote sight-reading with others
Reading through standard repertoire: Work through duet books, trio collections, or chamber music systematically
Simulating Performance Pressure
Mock auditions: Have teachers or friends conduct simulated audition experiences including sight-reading
Recording sessions: Knowing you’re recording creates pressure similar to performance
Time limits: Set strict time limits for preparation before “performance”
External evaluation: Have others assess your sight-reading rather than only self-evaluation
Common Sight-Reading Mistakes and Solutions
Understanding typical obstacles beginners face helps you avoid common pitfalls and address problems efficiently.
Mistake #1: Reading Too Slowly
Problem: Choosing tempo so slow that musical phrasing and momentum disappear
Solution:
- Find tempo where music moves but still manageable
- Rhythm should feel like music, not isolated notes
- Gradually increase comfortable tempo range through practice
Mistake #2: Looking at Hands/Instrument
Problem: Breaking visual contact with music to look at hands or instrument
Solution:
- Develop spatial awareness of your instrument
- Practice playing scales and patterns without looking
- Use peripheral vision for hand guidance if necessary
- Trust muscle memory and technical preparation
Mistake #3: Attempting Overly Difficult Material
Problem: Choosing music far above current reading level out of ambition or ego
Solution:
- Swallow pride and practice appropriate-level material
- Success at easier levels builds skills for harder material
- View easier reading as opportunity for speed and fluency development
Mistake #4: Practicing Same Pieces Repeatedly
Problem: Reading same material multiple times, turning it into normal practice rather than sight-reading
Solution:
- Maintain large library ensuring fresh material always available
- Use generating apps providing unlimited new exercises
- Resist temptation to “practice” pieces you’ve already read once
Mistake #5: Perfectionism
Problem: Striving for error-free reading, stopping to fix mistakes, getting frustrated by imperfection
Solution:
- Reframe expectations: sight-reading is about fluency, not perfection
- Celebrate keeping music moving despite mistakes
- Understand errors are learning opportunities, not failures
Mistake #6: Neglecting Rhythm
Problem: Focusing entirely on pitch while ignoring rhythmic accuracy
Solution:
- Always practice with metronome initially
- Count or conduct while reading
- Practice rhythm separately before adding pitch
- Develop strong internal pulse
Mistake #7: Skipping Theoretical Foundation
Problem: Attempting sight-reading improvement without strengthening underlying theory knowledge
Solution:
- Dedicate separate practice time to theory fundamentals
- Use theory apps and drills systematically
- Understand that theory knowledge directly translates to reading speed
Advanced Strategies for Continued Improvement
Once you’ve established solid sight-reading foundation, these advanced strategies push you toward professional-level fluency.
Transposition Reading
Practice reading in different keys: Take music written in one key and mentally transpose to another while reading
- Builds key signature fluency
- Strengthens relative pitch and interval recognition
- Prepares for instruments requiring transposition
Multiple Clef Reading
Learn to read all clefs fluently: Beyond treble and bass, learn alto, tenor, and others
- Greatly expands readable repertoire
- Strengthens general notation fluency
- Essential for some ensemble situations
Vertical Reading (Chord Recognition)
Practice reading harmonic structures vertically: Rather than arpeggiating, see chords as simultaneous units
- Especially important for keyboard players
- Improves harmonic understanding
- Accelerates accompaniment reading
Style-Specific Reading
Develop familiarity with genre-specific conventions: Jazz, baroque, contemporary each have typical patterns
- Study characteristic patterns of each style
- Learn ornament interpretation conventions
- Understand style-specific notation practices
Speed Reading Practice
Deliberately practice reading faster than comfortable: Push tempo limits to develop processing speed
- Accept higher error rate temporarily
- Forces quicker pattern recognition
- Expands comfort zone gradually
Creating Your Personal Improvement Plan
Transform these principles into concrete action through systematic practice planning.
Assessment: Where Are You Now?
Honestly evaluate current abilities:
- What level material can you read comfortably?
- What specific elements cause problems (rhythm, pitch, accidentals, etc.)?
- How consistent is your current practice?
- What theoretical knowledge gaps exist?
Goal Setting: Where Do You Want to Be?
Establish specific, measurable goals:
- “I want to sight-read Grade 3 material comfortably within 3 months”
- “I want to read all major key signatures fluently within 6 weeks”
- “I want to maintain steady tempo while sight-reading within 4 weeks”
Action Plan: How Will You Get There?
Design specific practice routine:
Daily practice (15 minutes):
- 3 minutes: Theory review or flash cards
- 2 minutes: Rhythm reading without pitch
- 8 minutes: Actual sight-reading (multiple fresh pieces)
- 2 minutes: Pattern recognition drill
Weekly review:
- Assess progress toward goals
- Adjust difficulty level if needed
- Identify persistent problem areas
- Celebrate improvements
Monthly evaluation:
- Record yourself sight-reading same difficulty level as beginning of month
- Compare recordings to document improvement
- Adjust long-term goals based on progress
- Expand challenge areas
From Struggling Reader to Confident Musician
Improving your sight-reading isn’t mysterious or dependent on innate talent—it’s the predictable result of consistent, strategic practice applying proven techniques. By focusing on reading ahead, mastering rhythm, recognizing patterns, and maintaining forward momentum, while systematically strengthening your musical fundamentals, you’ll transform from hesitant note-by-note reader to confident, fluent musician.
The best sight-readers aren’t perfect—they’re adaptable. They’ve trained their eyes, brains, and technical execution to work together efficiently, processing musical information quickly and accurately while maintaining the forward momentum that keeps music alive. They’ve developed pattern libraries allowing them to read musical “words” and “phrases” rather than individual note “letters.”
With patience, persistence, and the right practice approach, you can develop these same abilities. What once felt overwhelming—looking at unfamiliar music and immediately playing it—gradually becomes natural and even enjoyable. The skill that seemed reserved for talented few becomes accessible through dedicated application of effective strategies.
Start today: Choose one technique from this guide, incorporate it into 10 minutes of daily practice, and commit to consistency for just two weeks. You’ll be amazed how quickly noticeable improvement appears when you practice sight-reading the right way.
For additional resources on improving sight-reading, musictheory.net offers excellent theory fundamentals, while apps like Sight Reading Factory provide unlimited practice material tailored to your instrument and skill level.