In fact, the Federal Trade Commission held an entire hearing in 1937 to evaluate the Hammond’s sonority. Like the Telharmonium and theremin, whose own popular pasts are not widely known, the Hammond’s early history has much to teach us about how American audiences first encountered and understood electronic musical sound. The instrument had a major impact on the soundscape of both popular and religious musical life in the U.S., but it has been largely ignored by electronic music historians.
Just two years after it went on sale in 1935, major radio stations and Hollywood studios, hundreds of individuals, and over 2,500 churches had purchased a Hammond.
The Hammond Organ was the first electronic musical instrument to become commercially successful.