Legionaires of jam, rock, rap and blues held a tight little medley Friday night as wild psychedelic horses ran together across the walls and sounds which issueth of late from the resplendent Capitol Theatre. To bookend just another week in September which witnessed the somewhat less well-known Robert Dylan smash a bottle of bubbly across the bow of the newly launched and majestic Cap on Tuesday, members of some other rock 'n roll bands named The Grateful Dead, The Rolling Stones, The Allman Brothers, and Phish took to the altar to herald what's looking to be a damn good year for music in downtown Port Chester, NY, consummating the affair with a hip-hop ensemble appellation which goes by "The Roots." (Not to toot too loudly, but the roof happened to rise just a bit). Messieurs Bob Weir, Bobby Keys, Warren Haynes, and Trey Anastasio, joined by Grace Potter (of Nocturnals fame) put together melodies and rhythms wending between "Friend of the Devil" and "Dear Prudence" while weaving within some righteous brocade of "Jailhouse Rock," "Saint of Circumstance," and Fleetwood Mack's "Gold Dust Woman." That was the first set. Then The Roots. Bringing a bit of coming to "Break You Off," "The Fire," and "You Got Me," members were also seen inciting a funk drubbing with the lyrical stylishness of "Dynamite," tearing through the structure above that keeps the rain off ya. Quite choice. In the encore all performers united with a galaxy of music which left onlookers asking themselves, "What's next at the Cap?!"