It's doesn't use the username block, IDK why it says so. Green flag. I'm sorry if you run into any glitches while listening to this, just reload if that happens. The 9 characters from left to right and top to bottom are Tymewalk (Engineer), Tera (Sniper), Pico (Pyro), Nano (Spy), Scratch Cat (Scout), Hexapaw (Medic), Starwork (Heavy), Gobo (Soldier), and Giga (Demoman). How did I do? It's my first attempt at making a song with only the MIDI sound blocks.
Took me about 4-5 hours to make. Song is Team Fortress 2 by Valve Orchestra. I replicated it using Scratch's sound blocks. I drew everything except for the 6 Scratch characters, which I modified. Maybe I'll use this for something in the future. You never know.