Grey's Anatomy - Season 7, Episode 13: Soundtracks

Derek & Alex work on a patient in the Alzheimer's trial.

Meredith informs Alex about Alzheimers & gives him advice; Cristina convinces Mrs. Elkins to go ahead with the surgery.

The Chief gets into tweeting surgery while waiting for Bailey to return; Lucy Fields finds baby's heartbeat; Yang & Teddy perform cardiac surgery on patient; Derek & Alex do trial surgery on Mr Cobb

Arizona moves Callie's stuff back into their apartment; Mark tells Lexie about the pregnancy and she storms out; Derek asks Meredith to be on the Alzheimer’s trial.