Harmonic Mixing Wheel

Hi I made a custom version of the harmonic mixing wheel. I find this one more convenient than the colored one.

http://i1126.photobucket.com/albums/l612/Heinrook/HarmonicMixingWheel_zps997f5ea0.jpg

Also, for determining a track's key I use Virtual Keyboard. It can be found here: http://www.bgfl.org/custom/resources_ftp/client_ftp/ks2/music/piano/

Very useful if you don't have a keyboard!