Final answer:
Dr. Robert Moog and Don Buchla were two of the main developers of modular analog synthesizers in the 1960s, significantly influencing the field of electronic music with their innovative instruments.
Step-by-step explanation:
Two of the main developers of modular analog synthesizers in the 1960s were Dr. Robert Moog and Don Buchla. Dr. Moog is often credited with creating the first commercially available modular synthesizer, known as the Moog synthesizer, which had a significant impact on the development of electronic music. Meanwhile, Don Buchla developed his own brand of electronic musical instruments known as Buchla synthesizers, which were designed to create experimental sounds and catered to avant-garde musicians.
Both engineers are celebrated for their pioneering work, which has led to a rich legacy in the field of electronic music, influencing countless musicians and composers. The instruments they created allowed artists to generate new sounds in ways that had never been possible before, leading to the evolution of various music genres.