One of the most anticipated books of summer 2021. -- Apple Books. For Jax Hall, all-but-dissertation in mathematics, slinging drinks and serenading patrons at a piano bar is the perfect remedy for months of pandemic anxiety. He doesn't expect to end up improvising on stage with pop violinist Aria Darvish, but the attraction that sparks between them? That's a mathematical certainty. If he can get Ari to act on it, even better. Ari hasn't written a note, and his album deadline is looming. Then he meets Jax, and suddenly he can't stop the music. But Ari doesn't know how to interpret Jax's flirting-is making him a drink called Sex with the Bartender a serious overture? Jax jumps in with both feet, the only way he knows how. Ari is wonderful, and Jax loves having a partner who's on the same page. But Ari's struggles with his parents' expectations, and Jax's with the wounds of his past, threaten to unbalance an otherwise perfect equation. Can they prove their double act has merit, or does it only work in theory?