Answer:
He experienced an intrinsic reward. 
Step-by-step explanation:
A reward refers to something received which recognizes an individual's efforts, a sort of prize. 
It can either be intrinsic or extrinsic. 
- Extrinsic: coming from the outside, from the environment. 
 - Intrinsic: coming from within the individual, an internal/personal reward. 
 
In this case, the pianist has always wanted to play jazz and the opportunity of playing in New Orleans with a group of jazz musicians made him elated. 
His reward was intrinsic because he was pleased with the experience even if he didn't receive an external reward.