What the DUJA can do: it plays all midi notes and rhythm without a keyboard. You can in addition to all Roland effects manipulate the program selection.I do not understand yet what it really refers to, any help? But it provides banks, I am not so sure either. But successfully I can manipulate the controllers 7/ volume, attack, brilliance and bending. Over all are taken the information from the front page :long and short and volume . One question - is not new, but could be solved - the scale is very restricted to midi full numbers. The DUJA itself can play any eastern scales. I do not know how to get them into the midi system. Thanks for help and interest