This app plus your ears equals complete freedom in writing music!
A set of tools for beginner musicians:
Chord Progression - a progression selection tool with live playback and MIDI export.
Note Training - a tool for training treble and bass clefs, with the ability to play from midi keyboards.
Ear Training - a simple ear training tool.
Metronome - a simple metronome.
The iOS version of this app is also included in the package!