Although it has been completely overshadowed by the "official" CD and DVD versions of Marc Bolan's epochal rock and fantasy movie, this original attempt to re-create the soundtrack is nevertheless a worthwhile package. It targets not the full-blown glory of the film, with its dramatic in-concert centerpiece, but rather an overview of memorable moments - the string-powered "Children of the Revolution" that closes the album, the Mad Hatter-style "Tea Party," Bolan and Ringo Starr's madcap "Some People Like to Rock" routine, and so on. Of course, there is plenty of live material here, and the band sounds great - this was T. Rex at the peak of their powers, and while there are better-quality recordings out there, none recapture the sheer magic of the occasion like this one. Again, if you own (or intend to pick up) the CD soundtrack, you have no need to hunt this down as well…

Tyrannosaurus Rex's transformation from oracles of U.K. hippie culture to boogie-friendly rock stars began with the album A Beard of Stars, released in early 1970 when the band picked up electric instruments, and by the time the year was out, Marc Bolan had pared their name down to the more user-friendly T. Rex and dropped their first album with the new moniker. Oddly enough, while the songs on T. Rex bear a much stronger melodic and lyrical resemblance to what would make the band famous on Electric Warrior in 1971, the tone of the album is a bit more pastoral than A Beard of Stars; on most of the tunes, the electric guitars are more successfully integrated into the arrangements so they lack the jarring immediacy of "Elemental Children" or "Pavilions of the Sun," and Mickey Finn still wasn't using a full drum kit, so the tunes don't quite have the kick of a full-on rock band…

Tyrannosaurus Rex's fourth album, A Beard of Stars, was the turning point where Marc Bolan began evolving from an unrepentant hippie into the full-on swaggering rock star he would be within a couple of years, though for those not familiar with his previous work, it still sounds like the work of a man with his mind plugged into the age of lysergic enchantment. "A Daye Laye," "Pavilions of Sun," and the title tune sure sound like the writings of an agreeably addled flower child, and Bolan's vocals are playfully mannered in a manner that suits his loopy poetry. However, after shunning the corrupting influences of electric guitars on Tyrannosaurus Rex's early recordings, A Beard of Stars finds Bolan plugging in as he turns on, and he sounds like he's clearly enjoying it; the wah-wah solo that closes "Pavilions of Sun" demonstrates how just a little electricity gave this music a new lease on life…

The third Tyrannosaurus Rex album, and their debut U.S. release, Unicorn was also the first to steadfastly state the game plan which Marc Bolan had been patiently formulating for two years - the overnight transformation from underground icon to above ground superstar. Not only does it catch him experimenting with an electric guitar for the first time on record, it also sees Steve Peregrin Took exchange his bongos for a full drum kit, minor deviations to be sure, but significant ones regardless. And listen closely: you can hear the future. The opening "Chariots of Silk" sets the ball rolling, as slight and lovely as any of Bolan's early songs, but driven by a tumultuous drum roll, a pounding percussion which might be the sound of distant gunfire, but could as easily be a petulant four-year-old, stamping around an upstairs apartment…