Set the variables to your desired: instrument note and beat! Then press space to upload your data! Also set the play song? variable to 1 to play your song!
I got the idea from @RokCoder's project MIDI toolkit V2.0 Check it out here: https://scratch.mit.edu/projects/410823542 All coding by me. Update log: 1.0 Release! 1.1 You can make more than 1 song without restarting the project! #music #MIDI #make