Elementary - Season 5, Episode 3: Soundtracks

At a nudist camp, Kenny stumbles across a kidnapping scene, he records the captured victim, Beth, when he is attacked; Sherlock and several other's play the video from Kenny's phone.

(instrumental) Watson wakes up to the sound of Sherlock playing violin

As Paige waits in Gregson's office, Sherlock presents him with the opportunity & situation in which he could marry Paige then gives him rings; Gregson asks Paige to marry him.