Here is an excerpt from page 316 where the steel is mentioned:
... and so on.The band is a country-and-western four-piece, and soon Daniela and I are slow-dancing in a mass of people on a tiny dance floor. Her body is pressed against mine, my hand cupping the small of her back, and between the steel guitar and the way she's looking at me
Terrible writing, right? But, that's not even the end of the story. The book was a "blockbuster" and is being turned into a series! I kid you not.
“Dark Matter,” a new nine-episode sci-fi series coming to Apple TV+, will star Joel Edgerton and is based on the blockbuster book by Blake Crouch. Apple TV+ today announced it has landed “Dark Matter,” a new nine-episode series based on the blockbuster book by Blake Crouch.
If the series follows the book's storyline the four piece band with steel guitar should show up in the ninth episode.