To transpose a midi sequence :
1. Load the file to the sequencer and determine how many Semitones up or down, you wish to transpose.
2. Play the sequence through to determine the number of measures in the sequence file.Call this value 'N'
3. Press Program Menus > Sequencer > Range Edit > Transpose.
4. Set TRACK to ALL : FIRST MEASURE to 1 : LAST MEASURE to 'N' +1
5. Set TRANSPOSE to the number of Semitones Up or Down, as determined in step 1
6. Press OK and then YES.
7. Press EXIT once and then TRANSPOSE to return to the previous screen.
8. Set TRACK to 10 (Drum Track) and TRANSPOSE to the same number of Semitones as in step 5, but with the opposite sign - ie if you set TRANSPOSE to +2 in step 5, then Set it to -2 in this step.
9. Press OK and then YES.
10. Your file in the sequencer, has then been transposed to your desired key signature. You can save back to Disk or SD Card as desired.

Steps 7 through 9 are necessary to correct the DRUM track (usually Track 10 in a midi file) since this track will have been transposed during steps 3 - 6 and all the drum instruments will have been changed, which will make a total 'nonsense' of the drums, if not corrected