I believe "remove vocal" algorithms already implemented rely mostly on the pitch and tonal spectrum of the voice. For your example, what would be done when voc

I believe "remove vocal" algorithms already implemented rely mostly on the pitch and tonal spectrum of the voice. For your example, what would be done when vocals sync up with rhythm instruments (straight 1/8's or 1/4 notes played on guitar, sung as well). Happens all the time, often only a bar at a time, but sometimes longer. e.g. The Strokes - Last Nite (https://youtu.be/TOypSnKFHrE?t=62 https://youtu.be/TOypSnKFHrE?t=62) @1:03 "they don't under-stand" (repeated) could trick the detection into thinking it's some sort of rhythm instrument. My point is, all music is extremely rhythmic and requires everything else in the band to be rhythmic as well.