I don't understand the frictional negativity by others when singing to custom made by you backing tracks is concerned, smf or mp3, or anything thats NOT arranger Styles??.. etc, arranger keyboard playing isn't the holy grail never will be either....after all playing an arrange is only controlling Midi files/styles over and over again anyways...no body cares they just want to enjoy themselves when they hear good music and that can be accomplished in so many ways today.....why always the negative friction ?.....once us old timer players, wooden organ playing, accordionistics era dinosaurs are gone this friction and lack of musical creation support will disappear for sure...I am glad I dabbled in it all thru out my life so far with an open mind to it all...who the hell are we to judge anyone?

have a nice day..