3.5 stars 
 This is basically The Bodyguard, a police corruption mystery, a musician romance and a Christmas romance all wrapped together. A very satisfying romance, and despite the thriller/mystery bent, has very little physical violence in it. I enjoyed it quite a bit. Very well paced and plotted, lovely characterization, not just of the MCs but also of the secondary characters. Loved the bits about music and being true to your creativity. Can stand alone, but I enjoyed references to book 4, which I've read. 
 Source: the library 
 Trigger Warnings: (view spoiler)[ Gaslighting. Psychological sabotage. Stalking. Accusation and description of police violence. Police corruption. References to rape threats from trolls on the internet. Descriptions of childhood neglect and chaotic homelessness in childhood. (hide spoiler)]