Contrabass (Piano) play online

Features:
* My application is completely free.
* It is quite easy to use.
* The interface is simple.
* Background color options.
* Compatible with all tablet and phone screens.
* You can open the music from your phone and play the instrument accompanied by music.
* When playing music, the image consists of color graphics.
* You can easily record the music you made and you can play the sound recording.
* You can easily increase / decrease the volume.
* You can also play other instruments on the piano keyboard: Flute, Guitar, Piano, Harmonica, Snare, Sitar and Acoustic bass.
you can easily evaluate and share the application by obtaining this application.