Final answer:
The statement is true; the Gibson Company did start building prototypes for electric guitars in the 1930s, leading to significant developments in music technology.
Step-by-step explanation:
The statement "In the 1930s, the Gibson Company began building prototypes for an electric guitar" is true. Gibson's work on electric guitar prototypes marks a significant development in the history of music. The company's efforts contributed to the eventual mass production and widespread use of electric guitars in various genres of music, especially with the landmark ES-150 model that became available in 1936. It's an illustration of how technology can influence artistic expression and consumer culture over time.