
Clear reed
A defined fundamental with a small family of harmonics.

A small instrument. An open idea.
Start with a note. Leave a space. Change the ending.
Bellowsmith turns those choices into sound you can hear and keep.
Each voice is made from original mathematical oscillators. Choose a different balance without borrowing a recording.

A defined fundamental with a small family of harmonics.

A softer harmonic balance with room around each event.

An open tone with a brighter odd-harmonic outline.
Notes become a gesture.
Silence gives it a place.
A little working instrument
Tap a note to move through a small set of pitches, choose a voice, then press Play. This example runs locally in your browser and does not save a composition.
The Android app gives you a complete phrase editor, rests, beat lengths, ties, transposition and native WAV export.
Sound starts only when you choose Play.

A working phrase, then an edition
Save an edition with a name that means something to you. Duplicate it before changing its rhythm or register. Compare real note and timing differences, then return to the one you want to hear.
A few useful details
Original oscillators and envelopes create the audio on your device. The app does not use recordings of performers.
It joins equal neighbouring notes without a new attack. A rest remains silence, and every beat contributes to the duration.
Save and compare editions in the app, or choose a WAV, text sheet or project export. You decide where an exported file goes.
