That means The Music Man was popular around the time your parents (or possibly grandparents) were in high school.
Warku wuxuu intaas ku darayaa in caruurta oo inta badan ay la socdaan waalidkood ay ahaayeen ardayda (Orphan-ka), ama caruurta agoonta u badan ee lagu xanaaneeyo xarumaha tabaruca ee wadankaas.