Hmm. You mentioned that "All BW and B2W2 songs" will be included. But, what about those songs which seems to be duplicate in titles (such as N's Castle Theme, N's Theme, N's Battle Theme, Wild Battle Theme, Gym Leader Battle Theme, and Ghetsis Battle Theme... and they are seem to be more of them)? Do you plan to have both versions? And, also the different Gym themes in BW2. I guess that this project might have an expansion of song table.
The BW2 Titlescreen's midi seems to be not found everywhere. I have downloaded .zip-s of midis (including from your sappy tutorial) but it doesn't seem to be found. It is also not found in VGMTrans as well. I wonder what GameFreak have programmed to play that song (seems to have a remix routine they have made).