A monophonic synthesizer is an electronic musical instrument that can produce one note at a time. This type of synthesizer is often used for creating bass lines, leads, and melodies. Monophonic synthesizers typically feature a range of sound-shaping tools, such as oscillators, filters, and envelopes, allowing musicians to craft unique sounds. These synthesizers are popular in various music genres, including electronic, rock, and pop. Notable examples include the Minimoog and the Roland SH-101. Monophonic synthesizers are valued for their rich, expressive tones and are often favored for live performances and studio recordings.