Semitone

Semitone is an open-source Android application for musicians. It brings together a tuner, a metronome, and a piano in one simple tool. The design focuses on keeping these functions easy to use while retaining practical controls for musical work.

The tuner provides a tool for tuning, while the metronome supports work with a steady pulse. Users can set the A4 pitch to support alternative tunings. The metronome also allows strong beats to be set manually, giving users control over beat emphasis. The piano includes dynamic resizing for its keyboard, so its displayed size can be adjusted as needed.

On Android, these functions are presented as a single app rather than separate tuner, metronome, and piano tools. Its catalog classification is Video & Media Players, which is how Semitone is organized within the download catalog. The app itself is focused on musical practice, tuning, rhythm, and keyboard use.

MirrorNest mirrors the official build directly on its own storage. The mirrored build is scanned for malware before it is published. The listing identifies Semitone as open-source software for Android, along with its Video & Media Players category.