might be helpful for future modxk submissions~
the first two patterns could be played at A08 speed instead of A04 speed because every second row is empty.
(i just realized you also uploaded a 12k mod with long gaps between "important" rows, where you could've used different Axx-commands)
getting rid of instruments is always a good thing, especially when you only use volume envelopes and cutoff effects (simply doable by using Zxx and Dxx commands in pattern editor.
and if you have a section (e.g. pattern 0 and 1) where only one channel is added to a loop, you could start the song with the default channel volume of channel 5 set to 0 and enabling it later with a 1-row-pattern. a good example for stuff like that is this entry.
as i said, since it fits perfectly anyway, there's no need to implement all of this, but if you wanna add more sections to your song for example and already reached the file size, it might be a good thing to try one of these optimizations c: