Creating your OWN recorded midi file songs is what I am mostly talking about NOT commercial ones you buy. By doing this and being the player on top of it it allows you to be the maestro and arrange the song the way YOU need it to sound like and make it as simple or complex as you need it to be. I understand that many aren't aren't experienced to do so or are too lazy and that's a shame but, if you give it a shot, learn from others, dig into your kb you will be very surprised to find out what beautiful musical arrangements you can come up with to play with and be proud of. Mix them up with some style playing in your repertoire and sing your heart out too taking your act to new levels..good luck.