Bravo Nota

Bravo Nota is a free, on-device music toolkit for guitarists, pianists, songwriters and music students. 100 % on-device - your audio never leaves the phone, no account, no ads.

CHORD RECOGNITION FROM ANY AUDIO
Drop in an MP3 or any other audio file - or hit Record - and Bravo Nota lays out the chord progression on a scrubbable timeline. Switch between Original, Chords, and a crossfade. Handles 7ths, sus, slash and altered chords, not just major/minor. Loudness-aware playback boosts quiet recordings so they sit against the synthesised chord backing; an inline warning flags audio that is too quiet for reliable detection.

PITCH-PERFECT TUNER
24 instrument presets out of the box: Chromatic, Guitar (Standard, Drop D, DADGAD, Open G/D/E/C, Half Step Down, Double Drop D), Bass (4-/5-/6-string + Drop D), Ukulele (Standard / Low G / Baritone), Mandolin, Mandola, Banjo (Open G, Double C), Violin, Viola, Cello, Double Bass. A4 calibration from 415 to 466 Hz - tap the A4 label to snap back to 440. Pitch detector is accurate to one cent, stable on bowed strings and decaying piano notes alike.

LIVE SPECTROGRAM (ADVANCED MODE)
32 768-point FFT real-time waterfall with 24 CQT bins per octave from 27.5 Hz to 16 kHz. Four grid overlays (Notes, Hz, Off, Helmholtz Classical). Pinch-to-zoom x1...x8 on the frequency axis, drag-to-pan, single-finger crosshair with two readout pills (touched cell + rolling 3-second peak). Vertical and horizontal orientations.

METRONOME THAT WON'T DRIFT
Well under 1 ms drift over a 5-minute click. Time signatures from 2/4 through 12/8 plus custom; quarter / eighth / triplet / sixteenth subdivisions; per-beat accents (loud / normal / mute); tap-tempo; Italian tempo markings (Grave → Prestissimo). Four built-in click kits: Click, Wood Block, Cowbell, Mechanical (pyramid-metronome synthesis). Plays in the background - leave it running with the screen off.

FULL CHORD LIBRARY
A browsable reference with every triad, 7th, extension, sus and slash chord across all twelve roots. Each chord ships with a piano keyboard view (highlighted notes) and a guitar fingerboard with recommended fingerings, now with the played note name labelled on each string and the root note highlighted.

PRIVACY
Bravo Nota processes everything on your device. No microphone audio, no imported file, no usage data ever leaves your Android device. There is no analytics SDK, no advertising and no account.

Available in 57 languages.

Free, no in-app purchases, no ads.