This place is awesome! They'll let you hang out and play with all the fun instruments. I had my acoustic guitar adjusted here (had a little knob added to the neck for a better place to attach the guitar strap) for a few bucks. Nice friendly staff who your musical pursuits. I had a friend who had guitar lessons here which she loved, so there's all kinds of musical avenues to explore here.
Tricky to get out into traffic from this store, especially if you are there after 5pm. You may want to keep that in mind.