Idk which tracker you talk about, but the ones I know are difficult to read. Sure, you can learn to play a single note melody faster, but I doubt it'll work for

Idk which tracker you talk about, but the ones I know are difficult to read. Sure, you can learn to play a single note melody faster, but I doubt it'll work for complex pieces. At the very least, you'll need to constrain the format, if only to know which hand (or foot) should play which note. Trackers also lack notation for fingering, tempo, dynamics, etc. Piano rolls would be entirely a no-no. That would turn into a giant, unreadable staff. I don't know what social gatekeeping there is for the current notation system. I know a teenager who learns the basics from Duolingo. > what is the musical notation for a dotted quarter note delay? Composers have been very free in adapting notation. They make up a few symbols and strokes, and explain them in the first pages of the score. They've made up notation for aleatoric music, free passages with some direction, knocking on the instrument, etc. If someone wants to prescribe a certain echo effect only on a particular note, that's doable.