Frequently asked
Q01Why is a chord wrong on a track I know? +
Chord recognition is a probabilistic model, not a transcription oracle. Tracks with heavy distortion, dense drum-only sections, vocal-only passages, or atypical voicings (sus chords on a piano left hand, slash chords, jazz extensions outside the 170-class vocabulary) can confuse it.
Two things to try: (1) flip on Advanced mode — it runs 14 passes with pitch shifts and tempo stretches and votes on the result, which fixes most edge cases. (2) Look at the per-segment agreement score; anything below ~60% is a soft hint the model isn't sure and you should trust your ear over the label.
Q02How do I tune for drop D, DADGAD, or other open tunings? +
Use Chromatic mode, not Guitar mode. Chromatic shows whatever pitch the mic hears, regardless of which string the app expects. For drop D, tune the low string until the readout sits on D₂ at 0¢; the rest of the strings are unchanged from standard.
Guitar mode is a filter — it constrains the displayed note to standard EADGBE so you can't accidentally tune to the next semitone over. Open tunings need the unfiltered chromatic readout.
Q03Does it work without internet? +
Yes. Everything runs on-device — chord recognition, tuning, metronome. After install, you can put the phone in airplane mode and nothing changes. There is no server to call and no model to download at runtime.
Q04What audio formats can I import? +
Anything iOS's AVFoundation decodes: mp3, wav, m4a/aac, aiff, caf, flac, alac. DRM-protected files (e.g. tracks downloaded from Apple Music with a subscription) cannot be processed — that's an iOS-level restriction.
Q05Will the metronome keep ticking with the screen locked? +
Yes. Background audio is enabled. Lock the screen, switch apps, take a call — the click keeps landing on the beat. iOS may suspend audio if you fully background the app for an extended period without playback active; once playback is started, it stays alive.
Q06Why is the file picker missing my song? +
The picker uses the iOS Files app. If a song lives only inside the Music app (a subscription stream, an iCloud Music Library entry that hasn't been downloaded), it isn't in Files and Bravo Nota can't see it. Drag the file into Files first, or use the Share Sheet from the app where the file lives.
Q07Can I export the chord timeline? +
Not yet. Export to .txt, .csv, and a chord-pro-style format is on the roadmap. If this is important to you, email me and I'll bump the priority.