“For many who think of jazz as captivating sound, alluring rhythm, and charismatic style, jazz discography might seem like a soulless business conducted by grim introverts obsessing over record matrix numbers. Bruce D. Epperson knows this, but he also knows that a certain group of people who have approached jazz with a ‘passionate attention to facts’ regarding its recorded history have been absolutely critical to the life of the music—critical, that is, because the acts of producing, distributing, collecting, and listening to jazz records are themselves primary acts of jazz interpretation, evaluation, canon building, and meaning making. Epperson, a scrupulous bibliophile who writes with a lucid and graceful clarity, has given us a fascinating book, a book that conceives of jazz as a field of music that is also a field of knowledge. More Important Than the Music not only opens our eyes to the importance of jazz discography; it also charms us with its deft portraits of the nerdiest of jazz nerds in all of their eccentric, indispensable glory.”