Grey's Anatomy - Season 7, Episode 14: Soundtracks

Meredith's Alzheimer’s trial; Richard invites Mer to assist on a diabetes trial based on Ellis’ journal.

Arizona guilt trips Callie out of having coffee; Jackson Avery, Alex Karev, and Christina Yang review Meredith Grey’s trials.

Lexie thanks Avery; Lucy talks to Arizona; Mark starts surgery; Mer works on trial.

Mer turns down The Chief's offer, Jackson and Lexie talk; Lucy and Alex talk; Callie, Mark and AZ talk; Mer tells Derek she chose his trial.