Need help MIDI Out from Arduino

I've taken consideration on the MIDI IN as you suggessted. Right now, I'm focused on the MIDI OUT

Yes, I set the baud rate 31250

here's the code: https://docs.google.com/document/d/1VpcNgb8phVN_fRRYdFNwo6l-9kQLV7_ToV_rvBiVrQU/edit