Bebop originated as "musicians' music", played by musicians with other money-making gigs who did not care about the commercial potential of the new music. It did not attract the attention of major record labels nor was it intended to. Some of the early bebop was recorded informally. Some sessions at Minton's in 1941 were recorded, with Thelonious Monk alongside an assortment of musicians including Joe Guy, Hot Lips Page, Roy Eldridge, Don Byas, and Charlie Christian. Christian is featured in recordings from May 12, 1941 (Esoteric ES 548). Charlie Parker and Dizzy Gillespie were both participants at a recorded jam session hosted by Billy Eckstine on February 15, 1943, and Parker at another Eckstine jam session on February 28, 1943 (Stash ST-260; ST-CD-535).