Roland GR-33 User Manual

“Patch” is the term for the GR-33’s tones that can be called up 
at any time with a foot switch or other device. There are 256 
patches stored in the GR-33. As an example, the “A11” that 
appears in the display when the power is switched on 
indicates that patch number A11 has been called up, and that 
the unit is ready to be played.

This unit’s basic unit of sound is the “tone.” Tones consist of 
sound waveforms, such as “GR Piano,” “Pipe Organ,” and 
“Nylon Gtr mp” A total of 384 such tones are provided 
onboard. (How to choose tones 

→

→

 p. 

In any patch, up to two selected tones are combined, and 
then various settings and adjustments, such as brightness, 
attack, difference between synthesizer and guitar pitch, and 
the like are made. The user has full freedom to make these 
settings and adjustments so that the patch may best suit the 
song to be played.

Another result of changing these settings is that you can 
write and store 128 patches (in the first half of the patch 
bank). (For more detailed information about patches, please 
refer to p. 35.)

Patch numbers are indicated by a three-digit code: “a letter of 
the alphabet A–H (Group),” followed by “a numeral 1 to 8 
(Bank),” and then “a numeral 1 to 4 (number on the pedal).”

(Example: A83, d24, F61, etc.)

fig.2-01

(A11 to A84, b11 to b84, C11 to C84, and d11 to d84)

Here you can create patches to fit a song, or for other 
purposes, and then store those patches in memory.

(When you purchased your GR-33, the patches stored in 
these groups were the same as the following preset patches. 
If you want to reset the GR-33 patches to the original 
conditions, please carry out the Factory Reset operation 
explained on p. 16.)

(E11 to E84, F11 to F84, G11 to G84, and H11 to H84)

This is a collection of 128 preset patches, which have already 
been completely prepared by Roland. These patches are 
read-only, so although they can be changed, they cannot be 
written over with another patch. However, this also means 
no worries that they might be erased accidentally.

Preset patches are called up and used in the manner as user 
patches. Furthermore, they are convenient as references and 
basic material for the user wishing to create original patches.

Sometimes (such as when you want to listen to all of the 
patches one after the order) you will want to select patches 
using only the guitar (GK-2A). In such cases, follow the steps 
below. (It is unnecessary to touch any pedal or anything else 
on the base module.)

■

fig.2-02

Numerals 1 to 4 (Pedal Numbers)

Numerals 1 to 8 (Banks)

Letters A, b, C, d, E, F, G, H (Groups)