I have also discovered that pro keys (and I assume standard keys) are in a very usable format without a lot of conversion. Those of you that follow me on TA might have noticed that I unlocked the Pro Keys Graduate achievement awhile ago. I have a messy, working set of the final pro keys trainers. When I get some time I will get those cleaned up and posted.
Because a lot of you want songs that are not posted and I often do not have time to keep up with requests, I am going to make a set of videos explaining how to convert the game MIDI file into an usable Reaper file. Videos will include tutorials for Rock Band drums, Guitar Hero drums, Rock Revolution drums, lead vocals, and pro keys. I also hope to make a new and improved version of the PBaE tutorial video that clarifies a few things that I feel I missed in the original video.