Well, he wrote me back:

Transformer,

Sounds great! Would you like to come see my bluegrass band play a great venue? We are playing at Cafe XXXXX on Thursday at 8:30. Here is a link [link]:

See you soon,
B

I'm thinking I'll go, perhaps with a wingwoman. Any thoughts on how to finagle a one-on-one hangout in addition to watching his show?

Good news: I checked the link and everyone in his band is a guy. YAY!!!