A free app for Android, by NaTure77.

Sky Studio is an app for composing and practicing music using your device. It allows you to compose music using an instrument, and practice on it.

Sky Studio supports a variety of instruments, including the piano, the guitar, the flute, the trumpet, the clarinet, the saxophone, the bass, and others. It also supports a variety of scales, including the standard scales used in music, such as the melodic and the harmonic.

If you want to compose music with different musical instruments, we recommend you download this app. From piano and guitar to flute and saxophone, the app got it all.