To be fair with the product, I do not know if the problem comes from my computer (iMac 2012) or the piano (Kawai CL-36 b); But the Truth is I'm having trouble transmiting the music to my computer like 50% of the time and it's not as easy as Plug'n Play, but instead I have to try several times. The other problem is indeed the pedals are not interpreted as They Should but as a strident acute sound, so Basically no pedal accompaniment is possible. It could be again That I'm not using it correctly but then again, it needs some major tunning.