Roland MC-303 Groovebox User Manual download pdf

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mc-303

groove box

Supplemental

Notes

April 10, 1997

Advanced MIDI Programming with the MC-303

The MC-303 Groove Box adds a new dimension to any sequencer based system. To access all of the sounds

and features in this type of setup, you will need to run the MC-303 in what is referred to as “Sound Module” mode.

The purpose of this document is to help you use the MC-303 in Sound Module mode and to explore the effect of

certain MIDI messages and how they can impact your music. First, we will show you how to select sounds via

MIDI. Then, we will cover editing sounds with controller, RPN, and NRPN messages. Finally, we will examine the

onstruction and use of system exclusive commands.

I. Overview

he MC-303 can be used in one of the following two MIDI modes:

Normal mode Sound Module mode

Records Patterns and Songs No Patterns or Songs, sound source only

RPS and Arpeggiator Disabled

Real time control via front panel knobs Real time control via MIDI only

Mute parts and Rhythm set sounds in real time Front panel disabled (except volume control)

Not Multi-Timbral via MIDI 16 part Multi-Timbral sound source

In Sound Module mode, you will need to make all changes from your sequencer. You can use Program Changes

and Continuous Controller messages to accomplish common functions including Filter Sweeps, Vibrato, etc.

ystem Exclusive messages can be used for more extensive editing.

To enter Sound Module mode: To return to Normal mode:

1. Turn off the MC-303. 1. Turn the power off and back on.

2. Hold down [PLAY MODE] and turn on the power.

II. Selecting Sounds

The sounds in the MC-303 can be selected via MIDI by using bank select and program change messages. Some

computer based sequencers have patch lists or ‘templates’ available for various products. These ‘templates’ allow

you to select from a list of patch names, and will then send out the appropriate messages for you. You should

check with the manufacturer of your particular sequencer to see if they have a MC-303 template available. If not,

ou must enter the proper bank select and program change messages to choose a sound.

To select a sound in the MC-303 you will need to send three (3) messages from your sequencer (2 Continuous

Controller (CC) messages and a Program Change (PC) message). A continuous controller is a message that is

defined in the MIDI specification. There are 128 different CCs that perform a number of different functions.

Volume (CC7), Panning (CC10), Modulation (CC1), and Hold (CC64) are commonly used controller messages.

Controller 0 and 32 are used to select banks of sounds. If you look at the Tone List on pages 85-89 of the

Owner’s Manual, you will notice that each sound has an associated PC and CC0 value. CC32 will always be set

to 0 on the MC-303. You can usually insert these messages in the event list editor of your sequencer to be played

back with your song. If you use this method, insert some space between each message (a few clock pulses

should be fine). Here are some examples:

To select “101 Bass 1” send: To select “12str.Guitar” send: To select ”Sky Vox” send:

Message Value Message Value Message Value

CC00 64 CC00 65 CC00 71

CC32 00 CC32 00 CC32 00

PC 10 PC 58 PC 35

1 2 3 4 5 6

Summary of Contents

Page 1 - Supplemental

Page 2 - III. Editing Sounds

Page 3

Page 4 - IV. System Exclusive

Page 5

Page 6

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Roland MC-303 Groovebox User Manual

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