We mark and celebrate two composers born on this date. Zdeněk Fibich was born on December 21, 1850; 170 years ago today. Frank Zappa was born on December 21, 1940, 80 years ago today.

The two had more in common with each other than just a name that started with the letter “z”. They were both eclectic composers, who brought to bear in their music a wide variety of influences, influences that were deemed “incompatible” by their critics. Oh yes, their “critics”: as composers, both Fibich and Zappa were controversial. They both suffered from poor health and they both died young: Fibich at 49 and Zappa at 52.