There's something else about the photo that's helpful. Look at the plaque under it for a name you can look up back home.
There's one more thing we can find out about C, and that's his real name. Joey can help you here.
As Joey, look at the sheet music the pianist is using, then left-click/use it to read the name on it out loud. As Lauren, talk to the piano player again to confirm that his name is actually Cecil Sharpe.
There's more to find out here, but that's all you can get on the first visit. Go home to look up Jambalaya Records in the phone book, then go there to see what they can tell you.