lilsoulfish-hk

I loaded a MIDI to an SD card for the first time. It's magic. the song is in the key of D my band would like to play the song in C instead So I thought I could use the transpose function to make it -2 However, all it does is change it to an octave higher or lower. I tried looking for a solution for an hour in the manual and Google, but no luck. Hopefully, the community here can help a rookie like me. Thanks in advance!