Monk,Pettiford and Kenny Clarke.
When they recorded the session,Monk arrived in the studio with the sheet music under his arm,went straight to the piano and started playing through the music very slowly,note for note,
as if he was seeing the music for the first time.
Pettiford and Clarke went to the bar across the street and had a few.
After 3 hours Monk sent word that he was ready.
Pettiford and Clarke went back to the studio and they completed the whole album in less than an hour.
But total studio time: 4 hours.That meant double pay, as a session in those days were paid per 3 hours.