Supertramp's ‘70s peak came as they used the skills they'd honed as a prog band to create limpid, glowing pop. Hits such as “The Logical Song” and “Give a Little Bit” are simple and direct yet intriguingly layered, with deep, pillow-soft harmonies, warm and powerful melodies and sophisticated chord progressions. For every cheerily effervescent “Dreamer” there's a melancholy showtune like “Breakfast In America”, and there's a gleeful theatricality in the way “Bloody Well Right” plunges from skipping Wurlitzer into thick wah-wah guitars and “Ain't Nobody but Me” goes all-out with the blues.