Thirteen musicians crowded into the Bitches Brew sessions — a density of talent that changed jazz.

Miles Davis brought thirteen musicians into the sessions — a significant jump from the eight who played on In a Silent Way just a year earlier. With multiple keyboardists (Chick Corea, Joe Zawinul, Herbie Hancock), two bass players, and two drummers all playing at once, the sonic density was unprecedented. It’s the sound of too many geniuses in a room, and it worked.