Use the in game buttons to edit and record your song. Use the home row and the row above it on your keyboard to play songs. Use the left and right arrow keys to change the sound. Press any key to play the previous note. Use the file buttons to file your songs. You must press 1, 2 or 3 and hold thye 1, 2 or 3 keys down, then press the file button. The file this will apply to depends on what key you press. Use the 1 and 2 in the same way as the file buttons for all the other buttons to select whither it applies to track 1 or 2.
Note: You can't use any of the file controls on track 2. This project has 761 blocks, 12 sprites and a backdrop.