Analogue sequencers are hardware devices used in electronic music to create repeating patterns of control voltages that drive synthesizers, shaping pitch, filter cutoff, or other parameters over time. Unlike digital sequencers, which rely on software and memory, analogue sequencers operate entirely through voltage signals, often using knobs, switches, and patch cables to define steps, rhythms, and modulation. They can be linear, moving step by step in a fixed sequence, or they can incorporate features like voltage-controlled step advancement, probability, or randomization for more complex, evolving patterns. Their tactile interface encourages experimentation, making them prized for improvisation and live performance, and they are particularly celebrated in modular synthesizer setups where the interplay of CV (control voltage) and gate signals creates dynamic, organic sequences that are difficult to replicate digitally.