Behold, le first custom BFSTM out for public viewing!
https://www.dropbox.com/s/iqi56wfeu8uwohk/kirby.bfstm?dl=0
Of course, there isn't really much use for this until TCPGecko is compatible with recent Wii U firmware, though you can still listen to it by downloading VGMStream, which you can get the BFSTM version here:
https://www.dropbox.com/s/b1un7t47km90p8t/BFSTMvgstreamzip.zip?dl=0
(Also, I'll actually be taking requests for awhile. Probably up until I get the tutorial up and going.
Now, since the BFSTM format is all figured out, I can move on to a different music format. .nus3bank. (Which is the format used for Smash Bros. Wii U & 3DS)
It appears that the .nus3bank is an archive containing the actual music format, which is IDSP, and to me, it looks quite familiar to other formats so this shouldn't be too hard to figure out.