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.
MIDI Keyboard - Turn your phone into a MIDI keyboard for your macOS computer (compatible with macOS Catalina and newer).
Note training - a tool for practicing treble and bass clefs.
Voice practice & Ear training - simple tools for ear training and voice practice.
The macOS version of this app is also included in the package!