Suggested definition: Musician = someone who makes music.
That'll help if you define "music". Good bloody luck.
How about: Music: what musicians make qua musician. Helpful. huh?
If you hate it and can't imagine why anyone would like it, is it still music? Well then who make you lord and king of taste?
If it's not an evaluative term, so that its being good or enjoyable is irrelevant, then it seems it will be a less interesting and important question. But then we'll still have to distinguish good from bad music.
How about, Music = organized sound produced at least in part for no other reason than to be listened to? Then every table top spoon drummer and idle whistler is a musician. Fine by me, but some of you are outraged.
I don't care nearly so much about word definitions as about the truth of evaluative judgments, but it seem like some of you do.
Like I said, good luck with all this. If I only understood the point.
If it sounds good, it is good. (Ellington, I presume).