About the Workshop Booklets
Roland’s  GR-20  Guitar  Synthesizer  opens  up  spectacular  new  sonic 
possibilities  for  the  electric  guitarist.  With  the  included  GK-3  Divided 
Pickup installed, any six-string electric guitar can play the GR-20’s amazing 
collection  of  synthesizer  sounds  and  sampled  real-world  instruments. You 
can also mix your guitar’s own sound with those in the GR-20 to create new 
timbres that are all your own.
Each  GR-20  Workshop  Series  booklet  focuses  on  one  GR-20  topic,  and  is 
intended as a companion to the GR-20 Owner’s Manual.
This booklet requires GR-20 O.S. Version 2.00 or  higher. You can download 
the latest GR-20 O.S. for free from www.RolandUS.com.
About This Booklet
A MIDI sequencer captures and plays back MIDI performances. It’s a powerful 
tool that allows you to layer multiple performances, and do all sorts of things 
to hone your sequenced music to perfection. The GR-20 provides a way for 
you to record MIDI data into a  MIDI sequencer from your guitar, using the 
GR-20’s own sounds or any other MIDI sounds you like. This booklet explains 
how to sequence with the GR-20.
Understanding the Symbols in This Booklet
Throughout  this  booklet,  you’ll  come  across  information  that  deserves 
special  attention—that’s  the  reason  it’s  labeled  with  one  of  the  following 
symbols.
A note is something that adds information about the topic at hand.
A tip offers suggestions for using the feature being discussed.
Warnings  contain  important  information  that  can  help  you  avoid 
possible damage to your equipment, your data, or yourself.
Hot Links
Each Workshop booklet is meant to be read in order from beginning 
to end. However, if we mention an upcoming section—and you see 
this arrow—you can click the arrow to jump there immediately.
About MIDI, Sequencers, and the GR-0 
If you’re experienced with MIDI and sequencers, feel free to skip this 
section. 
A  full  discussion  of  MIDI  is  beyond  the  scope  of  this  booklet—in  fact,  we 
have an InFocus booklet devoted entirely to MIDI called  An Introduction to 
MIDI. You can download this booklet from the Support Documents section of 
the Roland US website.
Meanwhile—if  you  just  want  to  get  started—there are  three  basic  things 
you really need to know about MIDI, sequencing, and the GR-20:
MIDI  isn’t  sound,  it’s  instructions—When  you  play  a  MIDI  instrument, 
your  performance  is  converted  into  instructions  that  tell  a  sound-
producing MIDI device what notes to play, and how to play them. These 
instructions are called “MIDI messages.”
A sequencer—captures MIDI data, and can play it back. This can make a 
sequencer seem like an audio recorder, but it’s not: it’s just playing back 
instructions that cause a sound-producing MIDI device to recreate your 
performance. A sequencer, by the way, can be a software program on a 
computer, part of a keyboard workstation such as the Roland Fantom-X, 
or a standalone hardware device.
Your GK-3 and the GR-20—convert your playing to MIDI data, which can 
play the GR-20 sounds and/or be transmitted to another device, such as 
a sequencer, from the GR-20’s MIDI OUT jack.
Many sequencers offer standard audio tracks in addition to MIDI tracks. 
You  can,  of course, easily record  standard audio  from the  GR-20  into 
this kind of sequencer by simply connecting the GR-20’s OUTPUT jacks 
to  the  sequencer’s  audio  inputs.  To  learn  about  the  GR-20  OUTPUT 
jacks, see the Getting Started with the GR-20 Workshop booklet.
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