The boy band saga is repeating itself for years. Just the names are different. Ryan and Dan Kowarsky were recognized earlier this decade for their polished, glossy pop sounds in B4-4. However, unlike groups such as the Backstreet Boys who still continue to milk that sound dry, the identical twins’ new outfit RyanDan and album of the same name is musically the polar opposite of prior efforts. “I think it’s different from what we did,…