The legendary Thelonious Monk Quartet's appearance at the world-famous Concertgebouw in Amsterdam in May 1961. The high priest of bop, one of the most important, if enigmatic figures in modern jazz together with three of his main disciples, tenor sax specialist Charlie Rouse and the ultra-dynamic rhythm section of double bassist John Ore and drummer Frankie Dunlop, in a wonderful performance based on super tight renditions of classic tunes such as "Jackie-ing", "Straight No Chaser", "Crepuscule With Nellie", and "Rhythm-a-Ning". Surely, both the band and the packed house had a ball that night!