wow that lead sounds like a bagpipe, cool :O big groove, feels like a modern take on an oldschool style. at this size, you didn't remotely need the extra space, but you could save a bit of space (~0.4kb) by not using continue (00) commands
you can just repeat the value, like D02 D02 D02 instead of D02 D00 D00! it takes up less space that way. i tested it out on your module and saved about 0.4kb, so probably a byte per instance if i had to guess. just a fun fact for when we get to the really small formats :D
putting volume fades in the vol column with Dx/Cx (Bx/Ax for fine) also should cut it down further if need be, i didn't test how much