Somehow a group with just a 2 sting bass, baritone sax and drums turned out to be the greatest album band of all time. How is this possible?

Tracklist :

Dawna
Buena
I'm Free Now
All Wrong
Candy
A Head With Wings
In Spite Of Me
Thursday
Cure For Pain
Mary Won't You Call My Name
Let's Take A Trip
Sheila
Miles Davis' Funeral