This app review is on a very powerful app that we refuse to record without. It has become such a staple in our studio and in many producer’s studio. In fact, if we walk into a studio and we’re looking at all their expensive mixers, keyboards, interface chain, drum kits, pads, instruments, computer, etc. we immediately ask the engineer, do you have this phone app? if their response is yes we continue our work as planned. If their answer is no we leave without paying them for their time, because they wasted ours.