From Music Hack Day
The Sound Wheel is a circular synthesizer that uses synesthesia and variable intonation to make funky sounding basslines.
Double click the wheel to add a new node at a regular interval.
Click and drag to change the range of intonation.
The difference between two frequencies produces a binaural beat pulsating bassline.
Press m and n to change harmony ranges between nodes,
Press z, x to switch timbres.
Click on black to kill nodes.
You need Flash Player 10... Sorry iPad owners.