I used to own the Monster Music DVD of Sketches of Spain and somehow they were able to pull out each instrument from the original tapes (which original tapes I'm not sure) and arrange the players in a circle(ish) as they were when they recorded the album, based on photos from the recording sessions, to make a discrete 5.1 surround sound mix. I guess they'll augment the sound with software to make use of the additional speakers. Fwiw, I'm not a fan of the album so I sold it. It was a bit LOUD as well so I didn't appreciate that either.