Sequencers are devices used to record and play back electronic music. Some synonyms for sequencers include synthesizers, samplers, grooveboxes, beat machines, and drum machines. Synthesizers are electronic musical instruments that generate sounds by manipulating electronic signals. Samplers, on the other hand, record and playback recorded sounds and can manipulate them to create new sounds. Grooveboxes and beat machines are often used in electronic dance music production and include sequencers, synthesizers, and drum machines all in one device. Similarly, drum machines are devices specifically designed to generate and manipulate drum sounds for electronic music production. All of these synonyms for sequencers are essential tools for electronic music production, and each offers unique features and capabilities.