An all-ages show will launch the soft opening of the new Club 66, 1951 Ashland St., on Friday, Jan. 4. The music starts at 8 p.m. with acoustic folk-rock trio Foxhollow, followed by rock ’n’ roll trio In Between and rock band The Seaons (pronounced see-ons). Hamburgers, pastas and classic sandwiches created by Chef Uzi will be available, along with bottled iced-tea and juice drinks. The cover costs $5.