Hum is a filesystem where every file has a Kaṭapayādi sound-name and a pentatonic melody derived from its content. You open a file by humming its tune in any key: the app records your hum, detects the pitches, decodes them to the file's address, and opens the nearest match. You can also play any file's tune, add your own files, and see each file's melody as colored bars.

hum

A filesystem you open by humming. Every file has a Kaṭapayādi sound-name and a pentatonic melody — hum the tune, in any key, and it opens. Delightful on top; a real content-addressing scheme underneath.
your files — each is a little tune
open a file by humming it
…or press ▶ on a file to hear its tune, then hum it back. Hum in whatever key feels comfy — the pitch pattern is the address, not the exact notes.