This is something I can chime in on wholeheartedly. I've written on the topic and try, as a teacher, to bring the tools of metrics, parallelism, repetition, enjambment, musicality in language itself to poetry learners. Most people are never taught these skills. To write music, one must learn the symbolic system of notes, rests, rhythm. Many poets neglect the analogous training for writing verse that "sings" and bears reading time and again. Free verse includes many musical attributes but so much of what I hear is musically numb. Thank you to Mr. Alpaugh for raising this topic. I like a lot of the points made.
Jannie Dresser