No wonder they do a lot of wedding gigs - Sundae + Mr. Goessl (the stage act name for singer Kate Voss and her guitarist/songwriter husband Jason Goessl) have a natural romantic chemistry that comes through in the throw-back songs of a time long past. In fact, we learned in our interview that it was their considerable musical talent that first attracted them to each other. Hot on the heels of their recent Christmas album "Santa, Won't You Bring Me a Ring," they skipped the holiday tunes for