Lullaby

Lullaby is an Arduino-based smart music box that can play different melodies. This app lets you compose and manage those melodies.

Features:

- support for 7 octaves of notes, each with 4 durations (and relative rests)

- support for dotted and altered notes

- customizable BPM

- supports any time signature having a denominator of 2, 4 or 8 (e.g. 4/4, 2/2, 6/8...)

- real-time playing (can be used as a piano or while composing the melody to store)

- melody import and export from files

- open source (the code for both the app and the music box can be found here: https://github.com/aurasphere/lullaby)