All the pieces I have picked are worth listening to, but maybe even more so if you listen to them with headphones, as I would. I would hope you or your software would make it easy for you to make loud and soft copies etc. to play around with, to try and play through the pieces. I know I would love to play through a few of my own pieces. It would also be great if you could take the piece into a different key and say a major, minor or a mix. It would be great if the tempo could be picked up and adjusted by a simple click of a button. I would love to hear the piece in a minor version and also in a set of variations - with a different riff in each one of course. I would like to see these versions as well as the original. I would also like to know if you have any plans for dynamic ranges for the midi files. It would be great to have a way to pick a different dynamic range for each song or even just having a different dynamic range for the introduction or for the main song. I think its great that you can play a midi file from a different dynamic range, but I would love to be able to also have a different dynamic range for each of my midi files. E.g. If I wanted my piece to be louder in the intro, than I could have a different dynamic range, as well as having the same dynamic range in the main piece. Just maybe this is a real big deal to you, but it would be a real help to me!