Triton Radio Networks has signed a syndication deal to offer Jelli’s listener-driven programming to Triton’s more than 4,500 radio affiliates nationwide. Triton’s Dial Global will syndicate two daily Jelli programs — Top 40 Jelli and Rock Jelli — while Triton Digital offers stations customized 24/7 online Jelli services. Jelli launched as a pilot program earlier this year, with a Sunday-night show on CBS Radio’s KITS (Live 105) in San Francisco, giving listeners the chance to drive programming by making picks from a catalog of titles. The Jelli service, which debuts its beta today at www.jelli.net, also lets listeners vote songs up or down a playlist or can knock it off the air entirely — even, if enough listeners band together, in mid-play. Chat rooms let listeners socialize and lobby for their favorite music, and an iPhone app is also in the works.