Jazz Aspen Snowmass has confirmed the initial lineup for its After Dark series. A number of intriguing artists, including New Monsoon, Seventh House, Gnappy, Oteil Burbridge, E.O.R., and Impulse, among others, will perform venues throughout the Aspen/Snowmass-arena, such as the Blue Door, the Mountain Dragon, the The Artisan at Stonebridge Inn and the Silvertree Cabaret Room. As previously reported, Keller Williams, Matisyahu, Robert Randolph and the Polyphonic Spree are among the artists scheduled to appear at Jazz Aspen Snowmass Labor Day festival from September 1-4.