Notzart
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NOTZART

Note trainer with mic — play a note, Notzart recognizes it instantly.

✦ KUKA LAB ✦

✦ VERSION 2.1

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What's New in v2.1

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.

𝔐

35 Built-in Songs

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.

Sharps & Flats

The Songs staff now renders ♯ and ♭ accidentals next to noteheads — F♯, B♭, C♯ all show correctly so you can play in any key.

Native Smooth Scroll

One continuous linear animation drives the staff under a fixed playhead — perfectly even tempo, zero stutter, no JS thread blocking.

8

8 Learning Stages

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 Clef Fixed

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.

Light-only UI

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.

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What is Notzart?

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.

🎼

Real Staff Notation

Treble, bass, alto, and baritone clefs on a proper music staff. Rhythm notation: whole through 32nd notes, rests, dots, ties, and fermatas.

🎙️

Live Pitch Detection

Play any note on your instrument. Notzart hears it through your microphone and compares it to the target — including the correct octave.

🎹

Piano Keyboard

An on-screen piano keyboard lets you answer without an instrument, or follow along to see where the note sits on the keys.

🎸

Guitar Fretboard

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.

🎯

Octave-Accurate

Choose which octaves to practice — from the low E string up through the highest guitar positions. C4 and C5 are never confused.

Speed & Auto-Advance

Set slow, normal, or fast pace. Enable auto-advance to move to the next note automatically after a correct answer.

🌍

4 Languages

Full interface in English, Русский, Italiano, Español. Note names displayed in Do Re Mi, C D E, or solfège.

🔧

Mic Calibration

Auto-calibrate the microphone sensitivity for your specific instrument — piano, guitar, voice, or any sustained-tone source.

📊

Score & Streaks

Track correct answers, mistakes, and streak in real time. Session history is saved automatically when you switch away from the app.

🎻

Violin & Cello

Dedicated instrument modes. An intonation indicator shows cents deviation from the target pitch in green / yellow / red zones.

🎸

Bass Guitar

Full 4-string bass mode (E1–G2) with thick-string fretboard, bass clef notation, and low-frequency mic preset.

🎶

Flute

Concert flute range (C4–C7) with big note display, simplified Boehm fingering chart, and pure-tone synth voice.

𝔐

Songs Trainer

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.

Session Stats

Top 8 sessions tracked with accuracy, streak, and pills for correct / wrong counts. Saved locally — never uploaded.

📡

Chromatic Tuner

Dedicated Tuner tab. Animated needle, ±50¢ meter, and open-string references for guitar, bass, flute, violin, cello.

🥁

Metronome

Built-in metronome with BPM control and visual beat dots. Supports 2/4, 3/4, 4/4, and 6/8 time signatures.

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Download Notzart

Free for iOS and Android. No account required. No ads.

Download on the App Store
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User Guide

Everything you need to get started and get the most out of Notzart.

1 Getting Started

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.

2 The Exercise

A note appears on the staff. Your goal is to identify it and play or tap it correctly. There are three ways to answer:

  • 🎙️ Microphone — play the note on your real instrument. Notzart detects the pitch live.
  • 🎹 Piano keyboard — tap the correct key on screen.
  • 🎸 Guitar fretboard — tap the correct fret/string combination.

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.

3 Microphone

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:

  • 🎹 Piano — Low / Soft / Stability 1 — picks up sustain quickly.
  • 🎸 Guitar — Medium / Balanced / Stability 2 — handles plucked decay.
  • 🎸 Bass — Medium / Balanced / Stability 2 — favours low fundamentals.
  • 🎶 Flute — Low / Balanced / Stability 1 — clean tone, fast response.
  • 🎻 Violin — Medium / Strict / Stability 3 — tolerates vibrato.
  • 🎻 Cello — Medium / Balanced / Stability 3 — handles bowed swells.

4 Piano Keyboard

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.

5 Guitar Fretboard

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.

  • Strings are drawn top-to-bottom from high e to low E (as viewed from above).
  • Tap any fret on any string to answer. A note can appear in multiple positions.
  • Inlay dots appear at frets 3, 5, 7, 9, 12, 15, 17.
  • Scroll horizontally to see higher positions.

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.

6 Octave Selection

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.

7 Settings

Tap the gear icon in the top-right corner to open Settings.

Display

  • Clef — Treble · Bass · Alto · Baritone
  • Instrument View — 🎹 Piano · 🎸 Guitar · 🎸 Bass · 🎶 Flute · 🎻 Violin · 🎻 Cello
  • Practice Octaves — choose one or more octaves
  • Show note name / frequency / octave — toggle each display element

Language & Note Names

  • Language — EN · IT · ES · RU
  • Note names — C D E · До Ре Ми · Do Re Mi

Speed & Behavior

  • Speed — Slow (4s) · Normal (3s) · Fast (2s)
  • Auto-advance — automatically move to next note after correct answer

Rhythm & Metronome

  • Note durations — enable whole / half / quarter / eighth / 16th / 32nd
  • Rests — add whole / half / quarter / 16th rests to exercises
  • Modifiers — dot · double dot · tie · fermata overlays on notes
  • Notes per group — 1 · 2 · 3 · 4 notes shown simultaneously on the staff
  • Time signature — 2/4 · 3/4 · 4/4 · 6/8
  • Metronome BPM — 30–240, adjusted with − / + buttons

8 Scoring

The score bar at the top shows four live counters:

  • Correct — total right answers this session
  • Wrong — total mistakes this session
  • Streak — consecutive correct answers (resets on any wrong answer)
  • % — overall accuracy percentage

Scores reset when you close and reopen the app.

9 Tips for Best Results

🎹 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.

10 Rhythm Notation

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:

  • Dot (·) — increases note value by 50%
  • Double dot (··) — increases note value by 75%
  • Tie (~) — connects two notes of the same pitch; the second is played as one held note
  • Fermata (𝄐) — hold the note longer than its written value

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.

11 Clef Guide

Select the clef in Settings → Display → Clef. Each clef uses a different set of notes and positions on the staff lines.

  • 𝄞 Treble (G clef) — most common. Bottom line = E4, top line = F5. Used for piano (right hand), guitar (sounds an octave lower), violin, flute, and most soprano/alto instruments.
  • 𝄢 Bass (F clef) — bottom line = G2, top line = A3. Used for piano (left hand), cello, bass guitar, tuba, and baritone voice. In the Songs Trainer the bass clef carries the left-hand line on stages 2, 4, 6 and the lower stave of stage 7.
  • Alto (C clef) — middle line = C4 (middle C). Used primarily for viola. Helps avoid many ledger lines in the viola's typical range.
  • Baritone (C clef) — top line = C4. Used for baritone voice and some brass parts. C4 sits high on the staff instead of in the middle.

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.

12 Tuner

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.

  • Tap the mic button to start listening. The large note name and octave update in real time.
  • The cents meter shows how sharp or flat you are: green = within ±15¢, yellow = ±15–35¢, red = >35¢.
  • The animated needle sweeps left (flat) or right (sharp).
  • The open strings panel shows reference pitches per instrument. The closest string to the detected pitch highlights automatically.
  • Select the instrument tab to change references:
    • 🎸 Guitar — 6 strings: E2 A2 D3 G3 B3 e4
    • 🎸 Bass — 4 strings: E1 A1 D2 G2
    • 🎶 Flute — A4 = 440 Hz reference tone
    • 🎻 Violin — 4 strings: G3 D4 A4 E5
    • 🎻 Cello — 4 strings: C2 G2 D3 A3

Tip: tune each string with the meter centered and the needle still — a perfectly tuned string shows ±0¢.

13 Violin · Cello · Bass · Flute

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.

  • Green — within ±15¢ of the target (in tune)
  • Yellow — within ±35¢ (slightly out of tune)
  • Red — more than ±35¢ off (significantly out of tune)

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).

14 Songs Trainer

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.

  1. 1. Right-hand fragments — the melody is split into 8-note chunks. Play each chunk at your own pace.
  2. 2. Left-hand fragments — same approach for the bass-line, shown on the bass clef.
  3. 3. Full right hand — play the entire melody non-stop, manually advancing as you go.
  4. 4. Full left hand — same for the full bass-line.
  5. 5. Right hand at tempo — the staff auto-advances at the metronome speed. Play along.
  6. 6. Left hand at tempo — same for the bass.
  7. 7. Both hands (manual) — two staves shown simultaneously. The cursor advances only after you play the correct note (either right or left). Great for learning coordination at your own pace.
  8. 8. Both hands at tempo — same dual-staff layout, but the clock drives the advance. Coordinate both hands at the chosen BPM.

Notation features

  • Bar lines and 4/4 time signature drawn on every stave.
  • Beat-proportional spacing — a quarter note takes the same horizontal space whether it's in the treble or the bass, so notes stay aligned vertically between both staves.
  • Beamed eighths — consecutive eighth notes within the same beat are joined under a single beam instead of each carrying a flag.
  • Duration-aware note heads — whole, half, quarter and eighth notes are drawn at different sizes for instant readability.
  • Active note cursor — a vertical dashed line marks the note you should play right now.

Bar navigation & playback

The row under the staff lets you steer through the piece:

  • Bar N/M — jump to the previous or next bar. Both staves jump together so the bass and treble stay aligned at the same beat.
  • / ❚❚ — only visible on auto-tempo stages (5, 6, 8). After pressing ▶ the clock waits for your first played note before it starts ticking. Press pause to stop without losing your bar position.
  • To the right: live info chipsHear (detected note), Need (target note), Accuracy %. Note names follow your Settings → Note System choice.
  • Above the staff: 🎤 mic toggle, ↺ reset, and BPM −/+ controls (40–200).

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.

15 Stats & History

Tap the ℜ Stats tab to see your top 8 best practice sessions. Each row shows:

  • 🥇🥈🥉 — medals for the top 3 sessions; numbers 4–8 follow.
  • Date — when the session ran.
  • Accuracy % — color-coded: green ≥ 90, gold ≥ 70, red below.
  • Pills — ✓ correct count · ✗ wrong count · 🔥 longest streak.

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.

16 Tab Navigation

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:

  • 𝔖Trainer. Single-note pitch trainer with staff, keyboard or fretboard, metronome, and progress bar. This is the core exercise screen.
  • 𝔐Songs. Multi-stage melody trainer with bar navigation and play/pause (section 14).
  • 𝔗Tuner. Chromatic tuner with cents meter and per-instrument open-string references (section 12).
  • Stats. Top 8 session leaderboard (section 15).
  • 𝖈⊙Settings (gold compass icon). Theme, language, clef, instrument, mic preset, rhythm — every preference lives here (section 7).

The active tab is highlighted with a gold pill. The bar shrinks automatically in landscape so it doesn't crowd the staff.