For Bob's birthday, we're kicking off Jazz Appreciation Month with Frizz and Bob celebrating one of jazz's boldest, richest, and most emotionally alive albums: Charles Mingus' Mingus Ah Um. Frizz sips on Heaven's Door Bourbon, and Bob pours some Old Louisville Whiskey Company as they dig into Mingus' genius, temper, humor, protest, and obsession. From tributes to the Duke, more songs about more birds, the origins of "cool," and cats with six toes, we unpack how one album honored jazz history while pushing it into brand new territory.