The Moog Subsequent 37 is a powerful analog synthesizer known for its rich sound and versatility. It features 37 velocity-sensitive keys, allowing for expressive playing. The synthesizer includes two oscillators, a multi-mode filter, and a range of modulation options, making it suitable for various musical styles. Additionally, the Subsequent 37 offers a built-in arpeggiator and sequencer, enhancing its creative capabilities. It also includes a robust patch bay for connecting external devices, making it a favorite among both beginners and experienced musicians. Its classic Moog design and intuitive interface contribute to its popularity in the music production community.