You need to be active on the forums, do a little hub hopping, continue to write about what you know about and find similar or like-minded hubbers to befriend/follow.
I have had a quick glance at some of your articles and they are very interesting and very well written. You are obviously knowledgeable in your topic. Locate the music related forums and you should be well-away... You also need to share your hubs on twitter and facebook..., etc. Do you blog? I haven't started blogging yet but will do in the New Year - blogging helps as well, I believe.
I will have a good read of your hubs when I have a little more time. We are decorating at the moment and trying to get the floors sanded, stained and varnished before Christmas...in the meantime keep up the good work and good luck. Oh and Merry Christmas and Happy New Year!