This is the first time I have tried to use electronic drums through Ableton Live. I use a Focusrite Scarlett interface for other instruments so I am assuming that I will need to do the same for the electronic drums (Roland TD-11). This means finding a cable with a USB type B at one end and a jack plug at the other. Do such cables exist or could I connect straight into the back of the computer? Other people must have had this challenge, any help is gratefully received.