My 'desert island' list:
Allman Bros. - Fillmore East
Floyd - Dark Side, Wish You Were Here
Hendrix - Blues
Derek - Layla
Santana - Caravanserai, Abraxas, Moonflower
Boston - Boston
Jeff Beck - Blow by Blow
Miles - Kind of Blue
Coltrane - A Love Supreme, Blue Train
Bill Evans - Waltz for Debby, Moonbeams, Everybody Digs, Trio 65, Undercurrent
Metheney - As Falls Wichita
Maynard Ferguson - Live at Jimmy's
Bobby Hutcherson - Head On
Yo Yo Ma - The Cello Suites Inspired by Bach
Wynton Marsalis - Baroque Music for Trumpets, Trumpet Concertos, Baroque Music for Trumpet (with Edita Gruberova)
Alison Balsom - Bach Works for Trumpet
Rachel Podger - Biber's Rosary Sonatas (also good renditions by Hélène Schmitt and John Holloway (The Mystery Sonatas))
Mercury Baroque - Vivaldi L'Estro Armonico, Op. 3