TORONTO — Radio broadcaster Bob Mackowycz Sr., whose visionary programming injected a certain artistic flair into Toronto’s cultural scene, has died.

His son says Mackowycz suffered a sudden and unexpected illness. He died Wednesday at age 75.

Mackowycz began his radio career at Toronto rock and roll station Q107 (CILQ-FM) during its first broadcast year in 1977; he would later move into sports programming at the city’s the Fan 590 (CJCL-AM).