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About MIDI
MIDI stands for Musical Instrument Digital Interface, and is
a global standard that allows electronic musical instru-
ments and computers to exchange performance data.
“MIDI Implementation Chart” (p. 48) is a chart that provides
an easy way of checking which MIDI messages the
SP-404SX is able to receive. By comparing the MIDI
implementation charts of the SP-404SX and some other
MIDI device, you can see which messages are compatible
between the two devices.
MIDI Channel (Pad Base Ch.) and Note
Numbers
Use the following MIDI channels and note numbers when
playing the SP-404SX’s samples from an external MIDI
device.
Note Note #
MIDI Ch
Pad Base Ch Pad Base Ch+1
A2# 46 (0x2E) EXT SOURCE
B2
:
A3#
47 (0x2F)
:
58 (0x3A)
[A] Pad1
:
Pad12
[F] Pad1
:
Pad12
B3
:
A4#
59 (0x3B)
:
70 (0x46)
[B] Pad1
:
Pad12
[G] Pad1
:
Pad12
B4
:
A5#
71 (0x47)
:
82 (0x52)
[C] Pad1
:
Pad12
[H] Pad1
:
Pad12
B5
:
A6#
83 (0x53)
:
94 (0x5E)
[D] Pad1
:
Pad12
[I] Pad1
:
Pad12
B6
:
A7#
95 (0x5F)
:
106 (0x6A)
[E] Pad1
:
Pad12
[J] Pad1
:
Pad12
Changing the MIDI channel
(Pad Base Ch.)
1. Hold down the [FUNC] button and press the pad
[9] (MIDI CH).
2. Turn the [CTRL 3] knob to specify the MIDI
channel.
3. Press the [REC] button to save the setting.
MEMO
This setting is retained even while the power is turned
o.
Synchronizing the SP-404SX with
another MIDI device
1. Hold down the [FUNC] button and press the pad
[10] (MIDI SYNC).
2. Turn the [CTRL 3] knob to specify the MIDI sync
mode.
MIDI Sync Mode Description
AUt
(Auto Sync)
When MIDI clock is received, the SP-404SX will
automatically synchronize its own tempo to it. If
MIDI start/stop/continue messages are received,
the pattern will start/stop playing. MIDI start/
stop/continue will not be received during pattern
recording.
tNp
(Tempo Sync)
When MIDI clock is received, the SP-404SX will
automatically synchronize its own tempo to it.
MIDI start/stop/continue messages will not be
received. Select this mode of operation if you want
to play the SP-404SX’s patterns later at the desired
timing in synchronization with the performance
of your external MIDI sequencer, so that the two
performances do not begin at the same time.
oFF
(Sync OFF)
MIDI clock and start/stop/continue messages will
not be received. Select this mode of operation
if you only want to play the SP-404SX’s samples
using note messages sent by your external MIDI
sequencer.
With the factory settings this is set to “ AUt.”
3. Press the [REC] button so its light is turned o.
MEMO
This setting is retained even while the power is turned
o.
Synchronizing the pattern tempo and playback
start/stop with an external sequencer
With the factory settings, the SP-404SX (whose MIDI
synchronization mode will be set to “AUt”) can be con-
nected to your external MIDI sequencer, and the external
MIDI sequencer can control the start/stop and tempo of
the pattern playback.
1. Use a MIDI cable to connect your external MIDI
sequencer’s MIDI OUT to the SP-404SX’s MIDI IN
connector.
2. Press the [PATTERN SELECT] button so the button
is lit.
3. While holding down the [HOLD] pad, press the
pad of the pattern you want to play.
If you simply press the pad without pressing the [HOLD]
pad, the pattern will begin playing immediately.
4. When you stop your external MIDI sequencer, the
pattern will stop playing.
If the pattern playback does not start when you start
your external MIDI sequencer, or if the tempo does not
synchronize to your external MIDI sequencer, it is possible
that your external MIDI sequencer is not transmitting
MIDI clock or start/continue/stop messages. Refer to the
owner’s manual of your external MIDI sequencer and check
its settings.
About MIDI