A free program for Android, by CastleWrath.

Hexpress is an app for learning music. You can use it for playing your favorite music on your phone or tablet. The app is free, and you can download it on iOS, Android, and Windows 10. It is designed to be used in a way that suits you best, and you can choose to use it with a Bluetooth or wired headset.

You can choose between several instruments in the app, including a piano, a guitar, a drum, and a harp. Each instrument has a different sound, and you can change the sound by using different types of touch controls. The instruments are not meant to be played together, and you can choose to use different instruments in a song.

You can also use the app to record a song, and you can play the recorded song on your phone or tablet. You can use the app to compose a song with different instruments, and you can also play a part in a song.