I just got a Yamaha Tx7 module from Ebay. I realise that it's voices were designed to be edited by a DX7 keyboard and there is no way to get to any editing functions from the buttons on the front panel. I have heard that there is software that will allow me to create voices for it from the ground up on the computer and then dump them into the memory slots on the Tx7 through midi. Do any of you know of any freeware (or any software that will allow me to do that?).