Hello, i've only been programming a while. I'm trying to code an midi music improvisation program with separate functions for each instrument (which all work fine separately), but I can't work out how to make them all play at the same time. Basically, I have a function "random_lead" (which produces random midi lead notes) and i want it to play at the same time as "random_bass" (which improvise midi bass notes). Any thoughts would be much appreciated. Thanks!