MIDI Voyager is a music visualization app for your iPhone or Android phone that will make your music experience more enjoyable.

You can visualize your MIDI file by coloring notes according to their frequency or by using a visualizer.

You can set the number of notes to display, and also select which notes to color.

The app can also visualize large MIDI files.

There are some presets for you to choose from, but you can also set the color of each note to your own preference.

If you select the free option you will be able to use any MIDI file with this app.