Hmmmm. Frenesi/Artie Shaw and His Orchestra (late Feb or early March 1941).
I learned as a adult from my adult cousins that my parents were staying at my mother's brother's house, since my Aunt Nan had just come home from the hospital with their first child (she was 41), my parents there to help out. Their next child was adopted a few years later. She's not a baby boomer either, a year or so earlier than the BBs. Think of three grown female cousins laughing..
We didn't make guesses at that time about the music.
My brain keeps thinking that was in the house I remember the family having when some years later we moved back to California, but no, it was a house in the San Fernando Valley that I've no memories of ever being in but certainly was... in my own small way at the time. My parents moved to Ohio (AAF, Wright Field), shortly after my birth.