A handful of the world’s most mind-melting guitarists scamper cosmically through the music of a Nordic jazz-rock great on Sky Music: A Tribute to Terje Rypdal (). Elegant solo tracks by Bill Frisell, David Torn and Nels Cline (with cellist Erik Friedlander) are just the icing on the cake on an album that otherwise consists of explosive tunes from guitarists Even Helte Hermansen, Hedvig Mollestad Thomassen, Raoul Björkenheim, Reine Fiske, album producer Henry Kaiser and their tough rhythm section. Terje Rypdal, the now 70-year-old guitarist and composer, embodies the sort of virtuosity-plus-personality that inspired this heady gathering and, by the time the nine track album is over, you’ll be itching to hear more by those involved.