Yamaha ELS-01 Owner's Manual download pdf (Page 218)

ELS-01/01C Owner’s Manual

218

Connections

This section explains what MIDI is, and what it can do, as well as how you can use

MIDI on your Electone.

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What is MIDI?

No doubt you have heard the terms “acoustic instrument” and “digital instrument.”

In the world today, these are the two main categories of instruments. Let’s consider a

grand piano and a classical guitar as representative acoustic instruments. They are easy

to understand. With the piano, you strike a key, and a hammer inside hits some strings

and plays a note. With the guitar, you directly pluck a string and the note sounds. But

how does a digital instrument go about playing a note?

As shown in the illustration above, in an electronic instrument the sampled note

(previously recorded note) stored in the tone generator section (electronic circuit) is

played based on information received from the keyboard, and output through the

speakers. So then what is the information from the keyboard that becomes the basis for

note production?

For example, let’s say you play a “C” quarter note using the grand piano sound on the

Electone keyboard. Unlike an acoustic instrument that puts out a resonated note, the

electronic instrument puts out information from the keyboard such as “with what

Voice,” “with which key,” “about how strong,” “when was it pressed” and “when was it

released.” Then each piece of information is changed into a number value and sent to

the tone generator. Using these numbers as a basis, the tone generator plays the stored

sampled note.

Example of Keyboard Information

As described above, your keyboard performance and panel operations such as Voice

selection are handled as MIDI events. All rhythm-related data – including rhythm

patterns, auto accompaniment patterns, Rhythm Sequences, etc. – also consist of

MIDI messages.

MIDI

Voice number (with what Voice) 01 (grand piano)

Note number (with which key) 60 (C3)

Note on (when was it pressed) Timing expressed numerically (quarter note)

Velocity (about how strong) 120 (strong)

Internal amp

Tone generator

(Electric circuit)

Playing the keyboard

Acoustic guitar note production

Digital instrument note production

Pluck a string and the body resonates

the sound.

Based on playing information from the keyboard,

a sampled note stored in the tone generator is

played through the speakers.

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Yamaha ELS-01 Owner's Manual Page 218

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