Enough with the technical stuff, how much will you make?
Generally if you submit your review to a paid review service, if they decide to accept your review, they will pay you 5 - 15$.
However, using article marketing, the same review will make about 15-30$ per month for at least 18 months.
I don't have my own website, and I don't know HTML or any web design..
Perfect, neither do I! These skills are completely unnecessary in the article marketing business, it's simply about how you write your music review, not about making your own web page or anything of the sort. You will simply submit your reviews to websites such as EzineArticles, you wont need your own web page, ezine is free to use.
Conclusion: Do the thing you love and get paid handsomely to do it. There is a lot of money out there writing reviews, especially in the music area. You just need the knowledge and the power of article marketing behind you, and you will be very successful.