Good job, using Standard Notation - this will be very helpful for rekordbox users.
Harmonic Mixing Wheel
Hi I made a custom version of the harmonic mixing wheel. I find this one more convenient than the colored one.
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!
Thanx! this is verry helpfull.