Note trainer with mic — play a note, Notzart recognizes it instantly.
✦ KUKA LAB ✦
✦ VERSION 2.1
35 built-in melodies across 6 keys, accidentals on the staff, glass-smooth scrolling, an 8-stage Songs path and a cleaner light-only UI.
From Twinkle and Mary Had a Little Lamb to Greensleeves, Vincent, Auld Lang Syne, Hava Nagila and Brahms Lullaby — six different keys to practice with.
The Songs staff now renders ♯ and ♭ accidentals next to noteheads — F♯, B♭, C♯ all show correctly so you can play in any key.
One continuous linear animation drives the staff under a fixed playhead — perfectly even tempo, zero stutter, no JS thread blocking.
A new "Both hands" manual stage added before the tempo variant. Auto-tempo stages wait for the player's first note before the clock starts.
Bass-staff notes now sit on their correct lines (G2 on the bottom, middle-C above the staff). Pitch-detector thresholds lowered so left-hand notes are heard even when the right hand is louder.
Dark theme retired. Cleaner ivory-and-gold palette across all screens, bolder octave labels on the piano keyboard, and a redesigned Settings page with chip-style multi-selectors.
A note-reading trainer that listens to your instrument through the microphone and instantly checks whether you played the correct note — note name, pitch, and octave.
Treble, bass, alto, and baritone clefs on a proper music staff. Rhythm notation: whole through 32nd notes, rests, dots, ties, and fermatas.
Play any note on your instrument. Notzart hears it through your microphone and compares it to the target — including the correct octave.
An on-screen piano keyboard lets you answer without an instrument, or follow along to see where the note sits on the keys.
Switch to guitar mode and see a 19-fret fretboard in standard tuning. All positions of the target note are highlighted after 3 wrong attempts.
Choose which octaves to practice — from the low E string up through the highest guitar positions. C4 and C5 are never confused.
Set slow, normal, or fast pace. Enable auto-advance to move to the next note automatically after a correct answer.
Full interface in English, Русский, Italiano, Español. Note names displayed in Do Re Mi, C D E, or solfège.
Auto-calibrate the microphone sensitivity for your specific instrument — piano, guitar, voice, or any sustained-tone source.
Track correct answers, mistakes, and streak in real time. Session history is saved automatically when you switch away from the app.
Dedicated instrument modes. An intonation indicator shows cents deviation from the target pitch in green / yellow / red zones.
Full 4-string bass mode (E1–G2) with thick-string fretboard, bass clef notation, and low-frequency mic preset.
Concert flute range (C4–C7) with big note display, simplified Boehm fingering chart, and pure-tone synth voice.
35 built-in melodies in 6 keys (A m, D m, E m, C, G, D, F). 8 progressive learning stages per song — from 8-note fragments to both hands at tempo.
Top 8 sessions tracked with accuracy, streak, and pills for correct / wrong counts. Saved locally — never uploaded.
Dedicated Tuner tab. Animated needle, ±50¢ meter, and open-string references for guitar, bass, flute, violin, cello.
Built-in metronome with BPM control and visual beat dots. Supports 2/4, 3/4, 4/4, and 6/8 time signatures.
Free for iOS and Android. No account required. No ads.
Everything you need to get started and get the most out of Notzart.
Open Notzart. The main screen shows a music staff, a piano keyboard (or guitar fretboard), and a microphone button. Tap the ▶ Play button to begin a timed exercise, or tap Next Note → to go at your own pace.
On first launch, the app will ask for microphone permission — grant it to use the pitch-detection feature. You can still use the on-screen keyboard or fretboard without it.
A note appears on the staff. Your goal is to identify it and play or tap it correctly. There are three ways to answer:
After 3 wrong attempts, the note name and its position on the keyboard/fretboard are revealed to help you learn.
⏱ Timer mode: when ▶ is active, a progress bar counts down. If time runs out before you answer, the note is marked wrong and the next note appears.
Tap the 🎙 mic button to toggle listening on/off. When active, the app shows the detected note name and frequency in real time.
For best results, play a single, sustained note clearly. Chords or fast runs may confuse the pitch detector.
Auto-calibrate: go to Settings → Microphone → 🎙 Auto-calibrate. The wizard records 2 seconds of silence then 2 seconds of your playing, and sets the sensitivity automatically. Run this once per instrument.
Manual controls: Volume Threshold (how loud before the app listens) and Tone Clarity (how "pure" the pitch must be). The Instrument preset in Settings → Microphone → Instrument applies tuned defaults for each instrument:
The on-screen piano shows the range around the current target note. Tap any key to submit your answer. White and black keys both work.
After 3 wrong attempts, the correct key is highlighted in gold. If the microphone is on, the currently detected pitch is shown in cyan.
Switch to guitar view in Settings → Display → Instrument View → 🎸 Guitar. The fretboard shows standard tuning (E A D G B e) across 19 frets — the full classical guitar range.
Note positions revealed after 3 wrong answers: all positions of the target note across all strings and frets appear as gold dots. Use this to learn where notes live on the neck.
Go to Settings → Display → Practice Octaves. Tap the octave buttons (II · III · IV · V) to include or exclude them from exercises. At least one octave must always be selected.
Guitar range spans 4 octaves (II–V in Western notation = большая–вторая in Russian). Piano treble covers III–V, bass covers II–IV.
Start simple: beginners should start with a single octave (e.g. IV — middle octave) and expand as confidence grows.
Tap the ⚙ gear icon in the top-right corner to open Settings.
Display
Language & Note Names
Speed & Behavior
Rhythm & Metronome
The score bar at the top shows four live counters:
Scores reset when you close and reopen the app.
🎹 Piano: set Volume Threshold to Low, Tone Clarity to Soft. Piano has complex harmonics so a more lenient setting works best.
🎸 Guitar: pluck cleanly and let the note sustain. Classical guitar with nails produces the clearest pitch signal. Set Stability to 1–2 frames.
🎤 Voice/singing: use Voice preset in Settings. Set Clarity to Strict and Stability to 3. Sing sustained vowels ("ah" or "oh").
🔇 Quiet environment: background noise reduces accuracy. Use Auto-calibrate in a quiet room before practicing.
Enable rhythm features in Settings → Rhythm & Metronome. Once turned on, the staff shows notes with their correct rhythmic values alongside the pitch exercise.
Note durations: whole (𝅝), half (𝅗𝅥), quarter (♩), eighth (♪), 16th, and 32nd notes. Eighth notes and shorter are beamed together when two or more appear in a group.
Rests: when rests are enabled, a random slot in the note group may become a rest symbol. The app automatically advances past it after a short pause — no input needed.
Notation modifiers:
Visual only: modifiers are shown for music-reading practice. The pitch exercise always requires the correct note — rhythm and modifiers are context clues, not separate scored items.
Select the clef in Settings → Display → Clef. Each clef uses a different set of notes and positions on the staff lines.
Start with treble: if you're new to reading music, master the treble clef first — it covers piano, guitar, violin, and most melody instruments. Add bass next, then alto/baritone.
Tap the 𝔗 Tuner tab in the bottom bar to open it. The tuner works independently of any exercise and can be used at any time.
Tip: tune each string with the meter centered and the needle still — a perfectly tuned string shows ±0¢.
Select your instrument in Settings → Display → Instrument View. Each mode replaces the on-screen keyboard with the most useful representation for that family.
🎻 Violin / Cello — Intonation Indicator
Bowed instruments show an intonation light — a vertical bar showing how close your pitch is to the target note.
Violin range: G3–E5 (all four strings, G–D–A–E). Cello range: C2–A4 (all four strings, C–G–D–A).
🎸 Bass Guitar — 4-String Fretboard
Bass mode shows a thick-string fretboard in standard 4-string tuning: E1 A1 D2 G2. Notes are notated on the bass clef (the bass guitar sounds an octave lower than written, like a regular guitar). Octaves 1–4 are practiced by default.
Mic preset: minRms 0.005, clarity 0.55, stability 2 — tuned to capture the low fundamentals of a bass guitar without confusing harmonics.
🎶 Flute — Note Display + Fingering Chart
Flute mode replaces the keyboard with a big note name centered on screen, with all three name systems (C–D–E / До–Ре–Ми / Do–Re–Mi) shown below. A simplified Boehm-system fingering diagram appears under it: a horizontal flute body with 8 keys, the ones to press highlighted in gold.
Range: C4–C7 (concert flute). Octaves 4–6 are selected by default. The flute synth uses a clean sine wave with subtle 2nd-harmonic warmth, slow attack, and gentle 5 Hz vibrato — close to a real flute's timbre when played back.
Mic detection works the same way for all instruments: the app accepts the note when a sustained pitch matching the target is detected. After 3 wrong attempts, hints are revealed (key highlighted on fretboards; for flute the fingering chart is always visible).
Tap the 𝔐 Songs tab to open the songs trainer. Notzart ships with 35 built-in melodies across 6 keys: C major (Twinkle, Für Elise, Ode to Joy, Mary Had a Little Lamb…), A minor (Greensleeves, House of the Rising Sun), D minor (Hava Nagila, Scarborough Fair), E minor (Drunken Sailor), G major (Vincent, Silent Night, Edelweiss), D major (Oh Susanna, Camptown Races), F major (Auld Lang Syne, Brahms Lullaby, My Bonnie).
Sharps and flats are rendered with proper ♯ / ♭ symbols next to noteheads on the staff.
Song picker
Tap 🎵 Songs in the top-right to open the song list — a book-style typographic index. The currently selected song is highlighted in gold; PDF-imported tracks appear in italic. Tap a row to load it.
The + button in the picker header opens a separate import dialog where you can upload sheet-music PDFs (see Tips below).
The eight learning stages
Each song is broken into an 8-step progression. The numbered tabs above the staff let you jump between stages; the gold tab is your current position, green-bordered tabs are completed.
Notation features
Bar navigation & playback
The row under the staff lets you steer through the piece:
Feedback
A thin flash stripe appears at the top edge of the screen on every detected note: green for the correct pitch, red for a miss. In manual stages, wrong notes do not advance the cursor — you stay on the same note until you play it right. In auto stages, the clock keeps moving regardless and the accuracy score reflects how well you matched each beat.
PDF import (experimental): tap the + button in the songs picker, enter a title, and choose a sheet-music PDF. Notzart sends it to Claude Vision for OMR recognition and adds the parsed melody to your library. Requires an Anthropic API key in .env as EXPO_PUBLIC_ANTHROPIC_API_KEY.
Tap the ℜ Stats tab to see your top 8 best practice sessions. Each row shows:
Sessions are saved automatically when you background or quit the app, provided you played at least 3 notes. Older sessions outside the top 8 are dropped to keep the list focused on your best work.
All data is stored locally on your device via AsyncStorage — nothing is uploaded.
Notzart is organised into five tabs shown along the bottom of the screen. Each tab is marked with a single gothic glyph for instant recognition:
The active tab is highlighted with a gold pill. The bar shrinks automatically in landscape so it doesn't crowd the staff.
Effective date: May 21, 2026
Notzart ("the App"), developed by Kuka Lab, is a music note-reading training tool. This Privacy Policy explains what data the App collects, how it is used, and your rights regarding that data.
We are committed to protecting your privacy. The App is designed to work entirely on your device without transmitting personal information to any server.
The App stores your settings (theme, language, note preferences, microphone sensitivity) in your device's local storage (AsyncStorage). This data never leaves your device and is deleted when you uninstall the App.
Notzart requests microphone access solely for real-time pitch detection. The microphone is only active when you explicitly enable it by tapping the mic button. Audio data is processed locally in memory and is never saved to disk or transmitted over any network.
You may deny microphone permission — the App remains fully functional using the on-screen keyboard and guitar fretboard inputs.
The App does not integrate any third-party analytics, advertising networks, social media SDKs, or tracking services.
The App is distributed through the Apple App Store and Google Play Store. Your use of those platforms is subject to Apple's and Google's respective privacy policies.
The App does not knowingly collect any information from children under the age of 13. Since no personal data is collected from any user, the App is safe for use by all ages.
We may update this Privacy Policy if the App's functionality changes materially. Changes will be reflected on this page with an updated effective date.
Questions about this Privacy Policy? Contact us at kukalab@icloud.com.
Developer: Kuka Lab · Website: notzart.kuka-lab.com
Effective date: May 21, 2026
By downloading or using Notzart ("the App"), you agree to these Terms of Use. If you do not agree, do not use the App.
Kuka Lab grants you a personal, non-exclusive, non-transferable, revocable license to use the App for personal, non-commercial educational purposes on devices you own or control.
You may not:
You are responsible for:
All content within the App — including graphics, artwork, interface design, algorithms, and text — is the intellectual property of Kuka Lab unless otherwise stated. The hero artwork used in marketing materials is created with AI assistance and is owned by Kuka Lab.
Your use of the App is also subject to the terms and conditions of the platform through which you downloaded it (Apple App Store Terms of Service or Google Play Terms of Service).
Kuka Lab reserves the right to terminate your license to use the App at any time, without notice, if you violate these Terms.
These Terms are governed by the laws of the jurisdiction in which Kuka Lab is registered, without regard to conflict-of-law principles.
We may update these Terms at any time. Continued use of the App after changes constitutes acceptance of the new Terms.
Questions: kukalab@icloud.com
Effective date: May 21, 2026
Notzart is provided "as is" and "as available" without any warranties of any kind, express or implied, including but not limited to warranties of merchantability, fitness for a particular purpose, or non-infringement.
Kuka Lab does not warrant that:
The pitch detection algorithm is designed for sustained single-note instruments in reasonably quiet environments. Accuracy may be reduced by:
Detection results should be treated as educational feedback, not as a professional tuning reference.
Notzart is a supplementary practice tool. It is not a substitute for lessons with a qualified music teacher, structured conservatory curriculum, or professional ear-training courses. Progress in music requires consistent practice, qualified feedback, and musical context that this App cannot fully provide.
To the fullest extent permitted by applicable law, Kuka Lab and its officers, employees, agents, and partners shall not be liable for any indirect, incidental, special, consequential, or punitive damages arising from your use of or inability to use the App, even if Kuka Lab has been advised of the possibility of such damages.
In no event shall Kuka Lab's total liability to you for all damages exceed the amount you paid for the App (which, if the App is free, is zero).
The App is tested on a range of iOS and Android devices. Kuka Lab does not guarantee compatibility with all hardware configurations, operating system versions, or custom Android ROMs. Performance may vary significantly across devices.
Any links to external websites or services are provided for convenience only. Kuka Lab does not endorse and is not responsible for the content, privacy practices, or availability of third-party sites.
By using Notzart, you acknowledge that you have read, understood, and agree to this Disclaimer.