Libraries may need to adopt track-based music organization as it is mainstream in online environments. This study investigates whether the current Work-Expression model could be applied to jazz track organization by collecting and analyzing jazz enthusiasts’ opinions. Results show that improvisation and freedom are the two most agreed characteristics of jazz, and jazz enthusiasts tend to organize tracks of the same tune based on genre and style, and do not want the tracks pre-grouped but tagged with attributes such as instrumentation. It is concluded that the Work-Expression model is applicable to jazz when the tune is treated as the Work.