Free iTunes program like Synergy?

I can't solve your problem. Synergy is the best shareware app I've ever bought, its definitely well worth the $5.

look up bytecontroller
looks better too

Sizzling Keys

Cost : FREE

Best piece of free software I have ever used!

Lets you control iTunes from global hotkeys (all definable).

It also lets you assign a star rating from global hotkeys, sleep your Mac from a global hotkey, it displays a floater window with album art, song rating and title/artist/album info.

Please do yourself a favor and download this! You can also buy a more advanced version for $5 which will help the devs.

http://www.yousoftware.com/itunes/itunes.php

I like it better than Synergy, and it's free too.