The band he co-founded in 1966 had Ingle as main vocalist and keyboardist. He sang their iconic hit, In-A-Gadda-Da-Vida, which lasted 17 minutes and was featured in a 1995 episode of The Simpsons.
The musician’s son used social media to announce his father’s departure, but he omitted to mention the cause of death.
Iron Butterfly’s 1968 album of the same name included the song “In-A-Gadda-Da-Vida,” which peaked at number one in the US charts for 81 weeks.
After all, the record was certified quadruple-platinum, indicating that at least 400,000 copies were sold.
Because of its length, late-night disc jockeys could play the title track late into the night, and it became a legendary song and a running joke in rock circles.