Yamaha Electone STAGEA ELB-01 Owner's Manual page 158

9
158 ELB-01 Owner's Manual
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
Voice number (with what Voice)
Note number (with which key)
Note on (when was it pressed)
Velocity (about how strong)
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 (Musical Instrument Digital Interface) allows electronic musical instruments to
communicate with each other, by sending and receiving compatible Note, Control
Change, Program Change and various other types of MIDI data, or messages.
01 (grand piano)
60 (C3)
Timing expressed numerically (quarter note)
120 (strong)