Hi.My current setup includes Max Msp and Logic (mac mini 2012 latest everything). I can't get my Roland Dr - 660 drum machine to accept two midi notes at the same time. It will only ever output 1 note (audio) when sending two or more midi messages. Using the pads on the drum machine, I can easily play two or more notes at the same time and output audio successfully (eg. bass drum + hi hats).
I have a feeling this may be due to the cheap usb to midi interface (drum machine to mac) I bought on eBay. Can anyone confirm this or lead me in the right direction?