FF The Pike (London Harmony #8) by Erik Schubach

When distressing news calls June home from London to the Seattle area, she discovers something she was not expecting in the most unlikely of places. She never would have thought that she could find such musical talent hiding in the kitchen of the Pike.

A young woman, Ashley, has been mute as long as she can remember, after a dog attack when she was little, had scarred her throat and damaged her vocal cords. Her girlfriend, Leigh, who has an affliction of her own, completes her in a way nobody else ever has.

When the couple crosses paths with June by pure happenstance, amazing things begin to unfold.

(The London Harmony series is a spinoff of the Music of the Soul books.)