Aria Maestosa

Aria Maestosa is a visual, multi-track MIDI editor that lets you modify a melody that's already written or compose a new one from scratch.

To make learning a song easier, Aria Maestosa can represent the notes in different ways: on the music staff, for guitar, keyboard, drums, etc.

As it's a visual editor, you can insert a note at a particular position on the timeline in order to hear what it sounds like.

Once you finish your masterpiece, Aria Maestosa lets you export it as an AIFF file.