Bach and Mozart would definitely have been fans of Coltrane and Parker. All music has a rich history and a place to grow and develop with a deep respect to the original. But let’s face it Stravinsky would have embraced the Stones and Led Zeppelin. Coltrane dug Stravinsky and his teachings.
As directors and teachers we have no idea who walks into our rehearsal space on that very first day. Literature, rubrics, ideas, should all be formulated after the first day.
Keep the standards. It’s ok to evolve and open your head to contemporary music and jazz. No need for music snobs, dig.