In an attempt to determine the difference between the two, Wikipedia left me confused. Can you help?

  • I actually appreciate both long for details and short answers for overall understanding. Thanks all!
    – user9438
    Commented Jun 20, 2014 at 3:05

1 Answer 1


A sequencer is a tool where you can record and edit the "definition" of music. Think of a sheet of music - It tells you what notes to play, how long each note is, and how loud or soft to play. Now imagine that you can specify each of these parameters very precisely for each note. That is what a sequencer does.

A synthesizer generates audio (sound). You tell it what note to play, how loud and how long to play it, and what sound to use, and it generates the waveform of the specified sound at the specified pitch and volume for the specified duration.

There are several ways to tell a synthesizer what to play. Some synths have a keyboard that allows you to pass this information to the synth by what keys you press, how hard you press them, and how long you hold them.
Alternatively, you could connect your sequencer directly to your synth. The sequencer tells it what to play and how to play it, and the synthesizer generates the sound based on this information.

This article also has a good comparison.

  • Great, clear answer. +1
    – Daniel Cassidy
    Commented Jun 14, 2011 at 12:24
  • 1
    @BenV, so in super layman's view the sequencer is the director and the synthesizer the orchestra of musician doing the actual production?
    – Vass
    Commented Feb 3, 2012 at 11:55
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    @Vass Yep, that would be another way to think of it.
    – BenV
    Commented Feb 3, 2012 at 16:56
  • You managed to make the complicated answer so short. Thanks!
    – Shimmy
    Commented May 17, 2013 at 8:56