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Sequencer – Definition
A sequencer is a software application or hardware device that records, edits, and plays back musical performance data, most commonly using MIDI.
What is a Sequencer?
Unlike an audio recorder, a sequencer stores musical instructions rather than recorded sound. These instructions include note pitch, timing, duration, velocity, and controller information that can be used to trigger virtual instruments or external MIDI devices.
Today, sequencers are usually built into digital audio workstations (DAWs), where they form the foundation of modern music production.
How is a Sequencer used in piano playing?
Pianists use sequencers to record performances, edit mistakes, build layered arrangements, and control virtual instruments. MIDI sequencing also makes it possible to quantize timing, experiment with different instrument sounds, and create complete backing tracks.
Understanding how a sequencer works opens up powerful creative possibilities for composing, recording, and producing music.