Chapter 1 Try Playing Some Sounds

Setting the MIDI Channel

(MIDI CHANNEL)

Setting the Transmission Mode (MONO/POLY)

The GI-20 features two kinds of modes to transmit MIDI

1.Turn the PARAMETER knob to “MIDI CHANNEL.”

messages.

MIDI Message

1st

Basic Channel

 

 

 

Basic Channel

+1

 

 

2nd

 

 

Basic Channel

+2

 

 

3rd

 

Sound

Basic Channel

+3

4th

 

Module

Basic Channel

+4

5th

 

 

Basic Channel

+5

 

 

6th

 

 

 

 

 

 

String

MONO

MIDI Message

1st

2nd

Basic

3rd Channel Sound

4thModule

5th

6th

String

POLY

2.Press [SELECT] to select MONO/POLY.

When MONO/POLY is selected, only the leftmost indicator lights up.

*With the factory settings, all patches are set to MONO MODE.

MONO (MONO MODE)

In this mode, each individual string uses a separate channel, thus totaling six channels.

Since each string uses a different MIDI channel, you can select different sounds for each string and continuously change the pitch data when using string bending and other special techniques with specific strings. However, this requires a multitimbral sound module.

POLY (POLY MODE)

In this mode, the information for all six strings is transmitted over a single channel.

Since the MIDI messages for all six strings are transmitted over a single channel, it simplifies the settings for the sound module and reduces the number of MIDI channels used. However, options are more limited, for example, the same sound must be selected for all of the strings.

*In POLY mode, the Pitch Bend/Glide and Vibrato set in Assign (p. 19) function as follows.

When chords are played, Pitch Bend and Glide change in semitone steps and Vibrato does not function. These function normally when you play notes individually.

L i t

3.Press [PATCH/VALUE] to select either MONO or POLY.

MONOPOLY

4.To save the setting, carry out the Write procedure (p. 26).

*If you do not want to save the setting, turn the PARAMETER knob to return to “PLAY MODE.”

5.When you have finished making the settings, turn the PARAMETER knob to return to “PLAY MODE.”

Setting the MIDI Transmit Channel (BASIC CH)

This sets the GI-20’s MIDI Transmit channel (here called the “basic channel”). Set the MIDI channels as shown below according to whether the GI-20 is in POLY or MONO MODE.

When in POLY MODE

The performance data for all of the strings is transmitted over the Basic channel.

When in MONO MODE

1st String: Transmitted over the Basic channel.

2nd String: Transmitted over the Basic channel + 1.

3rd String: Transmitted over the Basic channel + 2.

:

6th String: Transmitted over the Basic channel + 5.

*With the factory settings, all patches are set to MONO MODE, and the Basic channel is set to Channel 1.

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Roland GI-20 Setting the Midi Channel, Setting the Transmission Mode MONO/POLY, Setting the Midi Transmit Channel Basic CH
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GI-20 specifications

The Roland GI-20 is a groundbreaking MIDI guitar converter that allows electric guitarists to explore the vast world of MIDI technology. Designed to bridge the gap between traditional guitar playing and digital music production, the GI-20 transforms standard guitar signals into MIDI data, giving players access to a wide array of synthesized sounds and virtual instruments.

One of the main features of the GI-20 is its ability to track the guitar’s pitch with high accuracy. Utilizing Roland’s advanced technology, the device boasts rapid response times and minimal latency, ensuring that every note plucked or strummed is translated into MIDI in real-time. This precision is crucial for guitarists who wish to maintain their playing style while experimenting with synthesizers and sampled instruments.

In terms of connectivity, the Roland GI-20 is equipped with a 13-pin connector, allowing it to interface seamlessly with compatible Roland synths, sound modules, and other MIDI devices. Additionally, standard MIDI outputs enable connection to MIDI controllers and computers, providing an expansive toolkit for music creation.

The user interface is designed with simplicity in mind. A large LCD display allows for easy navigation of settings, while intuitive controls help players adjust parameters on the fly. Guitarists can also customize their performance by altering the sensitivity levels, enabling them to fine-tune how the device responds to their playing style.

The GI-20 offers an array of built-in sounds that mirror the capabilities of traditional synthesizers. These sounds can be layered or split into different tones based on the player’s preferences, offering a variety of sonic textures to enhance compositions. Furthermore, the ability to save and recall user settings allows for quick access to preferred configurations during live performances.

Another significant characteristic of the GI-20 is its compatibility with a wide range of guitars, including both electric and bass guitars. As long as the instrument is equipped with the appropriate pickup system, the GI-20 can effectively convert its output into MIDI signals.

In summary, the Roland GI-20 is a versatile and innovative tool for guitarists seeking to expand their creative horizons. With its accurate tracking, extensive connectivity, user-friendly interface, and a wealth of sounds, it unlocks the potential for guitarists to dive into the realms of electronic music and MIDI composition. Whether in the studio or on stage, the GI-20 opens up a world of possibilities for musicians looking to blend traditional guitar playing with modern technology.
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