Hi guys! Thank you all for the advice you are giving me. Regarding the CASM section I had already taken care to use only channels 9-16 as stated in the manual. At the same time I used MidiSong to style but the results are unsatisfactory due to the poor quality of midi and more. I saved the midi in fromato SMF0. Unfortunately, the problem remains. What happens is that by changing the parameters LSB, MSB, PC ,CC07 the atsiera does not respond properly, some channels play, others do not or it goes crazy giving strange sounds. I am connected via USB to the PC and cubase reads the driver perfectly. I probably have some wrong midi settings but I don't know which ones...thanks a lot guys for your suggestions