Hi, i'm gonna show you how use your keyboard for syncronizing two deck.
First, add a lign in your MIDI files, with the option "pitch bend". learn your pitch bend with the "joystick" on your keyboard.
Now, you have a pitch bend, but it's to -80% to +80%

not really precise.
now, i don't know if you can make it with every keyboard, but it works with my edirol pcr-300

.
SO, go to the software to select what MIDI signals are gonna be sending from your keyboard (or select it on the keyboard).
edit the pitch bend and select the maximum worth as 68 and the minimum to 60.
now, you have a pitch bend to +4/-4

note: you can select 2 other worth, but the middle between them must be 64 (otherwise your pitch bend is gonna be -5.1 or -6.8 etc.. when the pitch bend is center

)
That's it!
There is my MIDI files for my edirol pcr 300 and the MIDI files to put in your pcr - 300.

E.zip
pcr-300.zip
and here is the mapping
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