Complex sentence: As it includes music from numerous cultures, it is often seen as being a part of ethnomusicology, and indeed a study group looking into music archaeology first emerged from ethnomusicological group the ICTM, not from within archaeology.
Split into simpler sentences: As it includes music from numerous cultures, it is often seen as being a part of ethnomusicology. It first emerged from the ethnomusicological group the ICTM, not from within archaeology.