How the drawbars work, About Midi | Korg BX-3 instruction

Appendices

1. How the drawbars work

2. MIDI applications

Drawbar 1 and Drawbar 2 each consist of a set of nine bars.

In Normal mode and Normal Edit mode, these bars have the following functions.

16':	The pitch one octave below the note you play
5-1/ ': The pitch a fifth above the note you play
8':	The pitch of the note you play
4':	The pitch one octave above the note you play

2-2/ ': The pitch one octave and a fifth above the note

	you play
2':	The pitch two octaves above the note you play

1-3/5': The pitch two octaves and a third above the note you play

1-1/ ': The pitch two octaves and a fifth above the

	note you play
1':	The pitch three octaves above the note you
	play

The white drawbars (8', 4', 2', 1') produce fundamentals. The black drawbars (2-2/3', 1-3/5', 1-1/3') produce pitches that are a fifth or a third above these fundamental pitches. The brown drawbars (16' and 5-1/3') add depth to the tone.

Pulling out the four right bars to a greater extent will produce a harder-toned sound, while pulling out the two left bars to a greater extent will produce a softer tone.

For example when you play middle C, each bar corre- sponds to the pitches shown in the diagram below. The further a bar is pulled out, the greater its volume will be.

For details on the function of the Drawbar 2 bars (EX Drawbar, EX Percussion) in EX mode and EX Edit mode, refer to the Drawbar illustration (p.13), to the EX Edit mode Group 2 “Ex Drawbar Type” parameter, and to the Global mode Group 8 “Type 1 Ex Drawbar 1” through “Type Ex Drawbar 4” parameters.

The BX- simulates 79 tone wheels that produce the notes from C2 to F#8, just as on traditional tone wheel organs. This means that if the drawbar settings could cause the pitch to exceed the range of C2 through F# , the pitch will “wrap around” to the previous octave.

About MIDI

MIDI stands for Musical Instrument Digital Interface, and is a world-wide standard that allows various perfor- mance-related data to be exchange between electronic musical instruments and computers. If a MIDI cable is used to connect MIDI devices, performance data can be exchanged even between electronic musical instruments or computers made by different manufacturers.

Connecting an external MIDI sequencer or computer

If you want to play the keyboard of the BX-3 and record your playing on an external MIDI sequencer/computer (connected via a MIDI interface) while using the BX-3’s tone generator to monitor your performance and the playback, or if you want to use the BX-3 as an input keyboard and as a MIDI tone generator, connect the MIDI OUT and MIDI IN connectors of the BX-3 and the exter- nal MIDI sequencer/computer to each other respectively.

Sequencer/Computer

MIDI interface

MIDI IN MIDI OUT