I tapped my foot. Studio time was bought by the hour and not cheap, yet Gabby and I were the only ones there. She was at the piano, of course, running her fingers over the keys with her usual brilliance, but it was only therapy, not real practice. Darren’s drums took twenty minutes to set up. The chitchat and apologies would take another fifteen minutes, and I still had to practice some dumb standards for the solo gig at Frontage that night.

I sat on a wooden bench facing the glass separating the studio from the control room. The room stank of cigarettes and human funk. The soundproofing on the...