A quick utility to visualize and listen to the diatonic modal scales (Ionian, Dorian, Phrygian, Lydian, Mixolydian, Aeolean, Locrian).

Click on the Mode Switch button in the upper left to toggle between various mode progressions. All of the modes are centered on C.

Progression 1: Relative modes.
Progression 2: Parallel modes, played in order.
Progression 3: Parallel modes, played in order of brightness.