Midi, What is midi, What you can do with midi – Casio CELVIANO AP-33V User Manual

Page 25: Midi connections, Midi channels

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E-21

What is MIDI?

The letters MIDI stand for Musical Instrument Digital Inter-
face, which is the name of a worldwide standard for digital
signals and connectors that makes it possible to exchange
musical data between musical instruments and computers
(machines) produced by different manufacturers. MIDI com-
patible equipment can exchange keyboard key press, key re-
lease, tone change, and other data as messages.
Though you do not need any special knowledge about MIDI
to use your CELVIANO as a stand-alone unit, MIDI opera-
tions require a bit of specialized knowledge. This section pro-
vides you with an overview of MIDI that will help to get you
going.

What you can do with MIDI

Send

• What you play on the CELVIANO can be sent to the con-

nected device as MIDI messages*1. The connected device
sounds notes in accordance with the messages it receives.

• MIDI messages*1 can be sent from the CELVIANO to a

commercially available MIDI sequencer*2 for recording.

Receive

• The CELVIANO can be used to sound notes sent as MIDI

messages from a connected device.

• Commercially available MIDI piano data can be sent from

a MIDI sequencer*2 or MIDI-capable personal computer
for playback on the CELVIANO. Up to 16 parts can be
played simultaneously by the CELVIANO.

427B-E-025A

MIDI

1 Keyboard play and memory playback data can be sent as

MIDI data. Demo tunes cannot be sent as MIDI data.

2 A device that contains memory storage for MIDI data.

Some MIDI sequencers feature external storage capabili-
ties, which let you record a virtually unlimited number of
tunes.

MIDI Connections

Two MIDI cables, one for sending and one for receiving, are
required for two-way recording and playback capabilities
with a connected MIDI sequencer or other device.

MIDI Channels

MIDI allows you to send the data for multiple parts at the
same time, with each part being sent over a separate MIDI
channel. There are 16 MIDI channels, numbered 1 through
16, and MIDI channel data is always included whenever you
exchange data (key press, pedal operation, etc.).
Both the sending machine and the receiving machine must
be set to the same channel for the receiving unit to correctly
receive and play data. If the receiving machine is set to Chan-
nel 2, for example, it receives only MIDI Channel 2 data, and
all other channels are ignored.
Your CELVIANO is equipped with multi-timbre capabilities,
which means it can receive messages over all 16 MIDI chan-
nels and play up to 16 parts at the same time.
Keyboard and pedal operations performed on your CELVI-
ANO are sent out by selecting a MIDI channel (1 to 16) and
then sending the appropriate message.

Simultaneous Receive Over Multiple

Channels (Multi-Timbre)

The Multi-Timbre mode makes it possible to assign the
CELVIANO’s built-in tones to MIDI channels 1 through 16.
Then you can simultaneously sound multiple channels to play
from a commercially available multi-track sequencer.

❚ NOTE ❚

• See “Assigning Tones to Individual Channels” on page E-22 for

details on assigning tones to each channel.

• Up to 16 channels can be received simultaneously (Channel 1

through channel 16).

• The number of channels to be received simultaneously must

be predetermined. If it becomes necessary to cancel a chan-
nel, the cancel operation must be performed on the sending
side.

OUT

MIDI

GRAND PIANO 2

PIANO 2

ELEC PIANO 2

PIANO 1

ELEC PIANO 1

HARPSICHORD

VIBRAPHONE

REVERB

CHORUS

METRONOME BEAT

METRONOME VOL

TEMPO

OFF

ROOM

STAGE

HALL 1

HALL 2

OFF

120

POEWR

CONTROL

START/STOP

METRONOME

GRAND PIANO

MIN

MAX

VOLUME

RECORD

ON /

OFF

DEMO

MIDI cable: MK-5

Sender

Receiver

MIDI musical instrument
MIDI sound module
MIDI sequencer
Other MIDI device

OUT