It's 8 p.m. on a snowy Wednesday night in November, and a crew of musicians is gathered in the cozy third-floor attic of Ben Morey and Katie Morey-Preston's home, which doubles as a recording studio and rehearsal space. The group is gathered to rehearse for a rather unconventional event: a live performance of Harry Nilsson's "The Point!," which will take place at the Cinema Theater on South Clinton Avenue on Nov. 23 and 24. The all-ages event is a fundraiser for The Submarine School of Music, a