hey guys i have a yamaha psr e423 keyboard, it has a USB MIDI port and i have the MIDI cable, i hook it up to my windows pc..i have the programs audacity, and dubturbo. I make dubstep music and i want to be able to download some sounds from somewhere or get some wobbles and bass onto the keys so i can make my own songs. someone help ill give a ful star rating to whoever helps thanks