Convert your MIDIs to BBS file format easy, just drag`n`drop.You can then import BBS files in your Band Brothers Save files with bbstool.NOTE: Names have to be corrected with included BBSNameFix tool or you will get Untitled or ??????.
@Psionic Roshambo, The SDK is publically available too. The datasheets for the SPG290 is super confusing for me, can barely get my homebrew running lol.