"Horn Concerto No. 3 in E-Flat Major, K. 447: III. Allegro"

Herbert Kraus, Vienna Mozart Ensemble & Bernd Heiser

Playing as the sub descends to the underwater habitat.

Follow The Yellow Brick Road / You're Off To See The Wizard

Judy Garland & Georgie Stoll & His Orchestra

Harry sings a line of this in the helium chamber.

Love for Sale

Arthur Lyman

Start of the section labeled "THE ANALYSIS". Playing in the background in the galley.

I'm Making Believe

The Ink Spots

Start of the section labeled "THE POWER". Barnes sees a jellyfish swim by the window and Fletcher goes out to the mini-sub to swap the tapes.

South Pacific: Bali Ha'i

Various Artists

Harry sings this in the shower.

I Had the Craziest Dream

Harry James

Harry ranting and raving about Norman's scrambled eggs.

Don't Get Around Much Anymore

The Ink Spots

This plays while Norman is brushing his teeth before he's suddenly attacked by a sea snake.