CRITICAL NOTES: - The app has ENDED and i don't work on it anymore. Please DO NOT EXPECT UPDATES for Android 13 and above. Features: - Low latency support for USB MIDI input devices. - full screen piano from version 1.5.5. - As tested app worked in background or screen turned off to practice USB MIDI Piano. This saved device battery. - Listen to midi & RMI (rmid) files with your custom instruments packed inside SoundFont files. - Export midi + soundfont to ogg. Don't need PC to make midi