The genealogy can be left to scholars; what's for sure is that Froese discovered the Moog in the early '70s and used it for the first time in recording 1974's Phaedra. The album was the first to garner the band any real attention and the spacey isolationist groove pioneered there would become the Tangerine Dream signature sound.

This very generous (close to three hour) set was filmed in London in 2005 and finds the band playing endless variations on the Phaedra theme. The show begins with Froese approaching a piano with a handkerchief in hand, playfully acting as if he's dusting off the keyboard when suddenly the cloth disappears and he's fiercely playing "Ricochet Part 1." After the showy solo is over the stage is illuminated to show the rest of the band ready and waiting behind an endless array of keyboards and the nod to the classic Phaedra is given with the playing of "Phaedra 05" and "Mysterious Semblance at the Strand of Nightmares."

The music of Tangerine Dream has always been an acquired taste; to the undiscerning ear much of this concert will sound just like the other. The music is instrumental and the band offers no stage patter and neither is there any real need to look at the TV screen that often---the focus here is on the music and letting it take you where you want to go without distraction.