Midi Functions - Yamaha PortaTone PSR-520 Owner's Manual

MIDI, the Musical Instrument Digital Interface, is a world-standard communication interface that allows
MIDI-compatible musical instruments and equipment to share musical information and control one another.
This makes it possible to create "systems" of MIDI instruments and equipment that offer far greater versatil-
ity and control than is available with isolated instruments.
The MIDI Connectors
The MIDI IN connector receives MIDI data from an external MIDI de-
vice which can be used to control the PSR-520. The MIDI OUT connec-
tor transmits MIDI data generated by the PSR-520 (e.g. note and velocity
data produced by playing the keyboard).
Simple MIDI Control
Most MIDI keyboards (including the PSR-520, of course) transmit note
and velocity (touch response) information via the MIDI OUT connector
whenever a note is played on the keyboard. If the MIDI OUT connector
is connected to the MIDI IN connector of a second keyboard (synthe-
sizer, etc.) or a tone generator (essentially a synthesizer with no key-
board), the second keyboard or tone generator will respond precisely to
notes played on the original transmitting keyboard. The result is that you
can effectively play two instruments at once, providing thick multi-in-
strument sounds. The PSR-520 also transmits "program change" data
when one of its voices is selected. Depending on how the receiving de-
vice is set up, the corresponding voice will be automatically selected on
the receiving keyboard or tone generator whenever a voice is selected on
the PSR-520.
PSR-520
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MIDI Functions

MIDI
OUT IN
MIDI OUT MIDI IN
Tone Generator
Overall Functions
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