I'm Learning to Use A DSLR and Need Help

God of Bass, originally uploaded by LiveFromPhilly.

Any pointers when it comes to lens selection, accessories or general composition would be greatly appreciated.

You can check out some of my photos on my Flickr page.

This photo is of Rah The Sun God (aka Rah M Sungee), a bassist from Philadelphia. It was taken at Doc Watson's pub during a performance by Akilles.