Welcome to the forum. Would you please confirm, first, whether or not your birth time is accurate? I ask because your ascendant and midheaven (MC) are very close to the next sign. If your birth time is an estimate, I'd have to consider that these placements might change.
Also, it's really helpful if we can see the planets' actual degrees. These affect planetary aspects.
My personal feeling is that musicians' and composers' charts show a lot of variety. I don't think that the chart says whether or not one will be a professional, but what kind of music they will make. What sort of music do you do now? What has been your experience so far?
If your MC actually is in Libra, its planetary ruler is Venus, who generically rules the arts.