There are words that, for reasons I can't fathom, I cannot stand. One such is "dongle." So when Bluebird Music's PR rep emailed me to ask if I would be interested in reviewing a new dongle from Chinese company Questyle Audio, I shuddered. But I must admit that "dongle" rolls off the tongue a lot more readily than "portable USB D/A headphone amplifier." I put aside my grammatical quibble and agreed to a review.

Called "the phantom" by fellow musicians and dubbed the "bearded, goateed astronaut of the tenor sax" by a close friend, trumpeter Kenny Dorham, the enigmatic Joe Henderson recorded five albums for the Blue Note label that are uniformly regarded as jazz classics. Mosaic Records has gathered those records—Page One, Our Thing, In 'n Out, Inner Urge, Mode for Joe—plus Henderson's sideman dates and alternate takes for Blue Note for a limited-edition, five-CD box set, The Complete Joe Henderson Blue Note Studio Sessions (Mosaic Records MD5-271).

In the annals of jazz, Charles Mingus—bassist, pianist, composer, bandleader, unique, headstrong, and deeply influential in every category—occupies the transit point between Duke Ellington and the post-'60s avant-garde, a station he carved out deliberately.