Colorado-based electronic duo Big Gigantic will be taking the stage at Roseland Ballroom on Dec. 30 and 31 for the venue’s last New Year’s Eve shows before it closes this upcoming spring. Approaching electronica in an unorthodox way, the two incorporate the saxophone in their music, as one half of the group, saxophonist/producer Dominic Lalli, is classically trained and graduated from the Manhattan School of Music with a master’s in jazz. They released their last studio album, Nocturnal, in 2012, and are currently prepping to go into the studio to record their next album early next year.