USB Midi Visualizer

★★★★★ Excellent and unique app! I can visualize what my teacher is playing :-) I'm using a midi to USB cable + OTG cable + Android S8: no problem. And next I can mimick the exercise by reading the file or by using Synthesia. I like the different color themes for the keys, the setup options. Note to Dev: maybe start creating the file from the first keystroke to prevent an empty beginning.

★★★★★ My connection is like this : Yamaha PSR keyboard ---> MIDI to USB cable ---> USB OTG cable ---> Android Phone. I'm expecting that when I play a midi file from Android midi file player, the tone generator of Yamaha PSR is used. So I need an App which pass the MIDI OUT signal to MIDI IN of Yamaha keyboard. I've tried quite many midi file players app, none of them played as my expectation. Until after digging quite deeper in Google Play Store I finally find this App, Midi Visualizer. This app pass the MIDI signal to my Yamaha keyboard PERFECTLY. Thank you very much MidiVis.

★★☆☆☆ Please add real Keyboard size 61 and video recorder option and share YouTube option

★★☆☆☆ The sound font is very poor, and the app is really slow when playing note-heavy files, and that causes lagging and random breaks during playback.

★★☆☆☆ Does not send pitch bend midi data. Pop up add greys out my screen on other apps and desktops until I close the app.