The countdown has begun for the shuttering of Crosstown Station (1522 McGee, 816-471-1522), the multimillion-dollar Crossroads concert venue and nightclub. Scheduled to close at the beginning of October, the final days include performances by Keller Williams, the Life and Times, and Garage A Trois. A notorious jam-band freak and faithful Deadhead, owner Chip Mitchell has scheduled one last gathering of spinners, wharf rats and wookies for A Grateful Goodbye, a performance by Workingman's Beauty with Steve Molitz (Particle, Phil Lesh & Friends). "I think shows like this help the older generations educate the younger folks," Mitchell says, "not only about the music but what the Dead was telling us in their music back in the good ol' days." Also on the bill: Denver rock band the Congress. Doors open at 7 for this 8 p.m. show. Tickets cost $8.