Part of the fun in travel is the unexpected. You just never know what you’re going to see in California. But you especially don’t know what you’re going to see in San Diego, either. A cool cat with a smile worked his way through a tune on one of the SD piers (San Diego has a couple piers–Oceanside, Imperial Beach, Ocean Beach, and Crystal Pier) and without even a cup to catch some coins or cash, people started looking for a place to drop their money in approval. You’ll see this sort of thing in practically any city, but in San Diego, the sun glistens on the water and everything seems hotter, including the music.  San Diego has some excellent night clubs where you can catch the music scene.