A marching band might span a whole American football field during a performance. That's potentially 135ms to the center of the field from the edge or more from

A marching band might span a whole American football field during a performance. That's potentially 135ms to the center of the field from the edge or more from a corner. Their type of music may be somewhat designed around it as a limitation as well as having a visual metronome in the conductor (though you could estimate one and even make it audible instead of visual using half round-trip-time for internet jam sessions). People seated at near field level at opposite corners may hear a 350ms+ difference in some instruments, but they may spread them out so that it just sounds like a reverb/wash of echoes. For these kind of apps wear headphones and you cut around 3ms per meter you are away from your speakers, due to speed of sound.