Frettable for Android

Frettable, developed by frettable, converts instrumental performances into digital notation and MIDI, aimed at musicians who record ideas on mobile devices. The app captures audio with a device microphone and applies machine learning to produce sheet music, tabs, and exportable MIDI. It pairs automatic transcription with cloud sync and external-editor connectivity so composers, songwriters, and producers can move from raw takes to editable scores quickly on Android and other platforms.

Polyphonic recognition handles chords and overlapping voices

The app uses an AI model designed for polyphony, letting it detect simultaneous notes and translate them into score elements instead of single-line guesses. That capability is presented as the core transcription engine and is the basis for producing both tablature and standard notation from the same recording. For multi-note instruments like guitar and piano, the engine reports chord content alongside melodic lines rather than reducing parts to a monophonic trace.

Capture then edit: a mobile-first path into notation editors

The workflow moves from in-app recording to outside editing: users record through the device microphone, then open results in external notation software. Direct integration with Noteflight is included, so scores can be opened and edited in that environment without manual file conversion. The flow is aimed at rapid iteration: record, review the autogenerated score, then refine in a professional notation editor.

Export and file support target cross-tool production workflows

Export formats and instrument coverage are tailored for transfer into DAWs and notation tools. The app supports MIDI and MusicXML exports and can produce PDFs. It also lists support for over 40 instruments, and cloud synchronization stores audio, MIDI, and sheet files across devices, which helps move transcriptions into desktop production or notation environments.

Noise and connectivity introduce practical cleanup steps

User notes and product FAQs indicate two common friction points: recordings made in noisy environments often need manual corrections after transcription, and offline captures are queued for processing once a network connection is available. Those behaviors speed idea capture but add post-processing when recordings are imperfect or when immediate, local transcription is required.

A research-led tool that suits creators who need rights and mobile access

Frettable fits musicians and composers who want mobile capture plus retained intellectual property, since the developer states users keep copyrights to their transcriptions. The app is less appropriate for owners of very old Android hardware, because it requires modern OS support, and for teams needing guaranteed in-device processing with no cloud roundtrip. Producers seeking a fully integrated in-app DAW should evaluate dedicated production suites instead.