Hey,
I might be able to help you. I've done lots of poetry - published 3 books, been in writers' groups, critiqued, taught poetry to kids and adults, had poems published in anthologies, won a couple small awards. Some of mine were to be "lyrics" but, although I'm very musically inclined, I don't play an instrument (well) or know how to write music properly. So, I have a knack/ear for rhyme, rhythm, meter and music. What's the subject matter? What kind of music? Not sure how to bid on this - except maybe like I would for editing a poem - more or less. How would I hear the music?
I'm a university-educated native English speaker. I have lots of experience - writing, editing, teaching creative writing and doing manuscript consultations - on this site and off. I would use track changes in Libre Office and offer comments. Please see my reviews and portfolio on my profile page.