James Puccio & The Good Grounders are the next big jam band on the East End. The group’s repertoire features original songs written by Puccio, a singer-songwriter from Hampton Bays known for his powerful vocals and emotive lyrics, and covers from artists like the Grateful Dead, John Mayer and others who have influenced the band. With a blend of three-part vocal harmonies, a twin lead guitar attack, vibrant originals and covers that are hard not to dance to, October 29 will be a show that East End music fans won’t want to miss.