harmony

WIRED's 5 Levels format with Jacob Collier explaining harmony to a child, a teen, a college student, a professional and Herbie Hancock.

Jacob Collier layers ten vocal parts to arrange and perform Harold Darke's carol "In the Bleak Midwinter", with inventive harmony and tuning.

Vox Earworm explains why John Coltrane's Giant Steps is so hard to improvise over: it is fast and moves through three keys. Musicians Braxton Cook and Adam Neely walk the host through the underlying music theory.

Yo-Yo Ma performs Bach's Cello Suite No. 1 in G Major at the BBC Proms in 2015. It is a full solo cello performance of the suite.