Yamaha MU15 1.2.16 Portamento Control, 1.2.17 Effect1 Depth ( Reverb Send Level ), 1.2.18 Effect3 Depth ( Chorus Send Level ), 1.2.19 Effect4 Depth ( Variation Effect Send Level ), 1.2.20 Data Increment / Decrement (for RPN), 1.2.21 NRPN (Non-registered parameter number)

96
MIDI Data Format
1.2.16 Portamento Control
This message specifies the portamento source key number (the
key number at which portamento will begin).
Data of 0...127 specifies the portamento source key.
When Portamento Control is received, the currently-sounding
pitch will change at a Portamento Time of 0 to the key of the
next-received note-on of the same channel.
Control# Parameter Data Range
84 Portamento Control 0...127
(C-2...G8)
This is received even if Rcv PORTAMENTO = OFF.
1.2.17 Effect1 Depth ( Reverb Send Level )
This message specifies the send level for the reverb effect.
Control# Parameter Data Range
91 Effect1 Depth 0...127
Increasing this value will produce a richer reverb. The effect of
the value will depend on the state of the reverb effect.
1.2.18 Effect3 Depth ( Chorus Send Level )
This message specifies the send level for the chorus effect.
Control# Parameter Data Range
93 Effect3 Depth 0...127
Raising this value will increase the modulation or spaciousness.
The effect of the value will depend on the state of the chorus
effect.
1.2.19 Effect4 Depth ( Variation Effect Send Level )
This message specifies the send level for the variation effect.
Control# Parameter Data Range
94 Effect4 Depth 0...127
However, this is not received if the Variation Effect parameter
Variation Connection = 0 (Insertion).
1.2.20 Data Increment / Decrement (for RPN)
After RPN (see 1.2.22) is used to specify a parameter such as
Pitch Bend Sensitivity, Fine Tune, or Coarse Tune, this message
is used to increase or decrease the respective parameter value
in steps of 1.
Control# Parameter Data Range
96 RPN Increment – –
97 RPN Decrement – –
The data byte is ignored.
1.2.21 NRPN (Non-registered parameter number)
This message is used to specify a sound parameter (such as
vibrato, filter, EG, drum setup etc.) as an offset value.
Use NRPN MSB and NRPN LSB to specify the parameter that
you wish to modify, and then use Data Entry (see 1.2.4) to set
the value for the specified parameter.
Control# Parameter Data Range
98 NRPN LSB 0...127
99 NRPN MSB 0...127
If the Multi Part parameter Rcv NRPN = OFF, that part will not
receive NRPN.
The following NRPN messages can be received.
NRPN
Data Entry *1
MSB LSBMSB LSB Parameter name and value range
01H 08H mm – – *2 Vibrato rate
mm : 00H - 40H - 7FH (-64...0...+63)
01H 09H mm – – Vibrato depth
mm : 00H - 40H - 7FH (-64...0...+63)
01H 0AH mm – – *3 Vibrato delay
mm : 00H - 40H - 7FH (-64...0...+63)
01H 20H mm – – Low pass filter cutoff frequency
mm : 00H - 40H - 7FH (-64...0...+63)
01H 21H mm – – Low pass filter resonance
mm : 00H - 40H - 7FH (-64...0...+63)
01H 63H mm – – EG attack time
mm : 00H - 40H - 7FH (-64...0...+63)
01H 64H mm – – EG decay time
mm : 00H - 40H - 7FH (-64...0...+63)
01H 66H mm – – EG release time
mm : 00H - 40H - 7FH (-64...0...+63)
14H rr mm – – Drum low pass filter cutoff frequency
rr : drum instrument note number
mm : 00H - 40H - 7FH (-64...0...+63)
15H rr mm – – Drum low pass filter resonance
rr : drum instrument note number
mm : 00H - 40H - 7FH (-64...0...+63)
16H rr mm – – Drum EG attack rate
rr : drum instrument note number
mm : 00H - 40H - 7FH (-64...0...+63)
17H rr mm – – Drum EG decay rate
rr : drum instrument note number
mm : 00H - 40H - 7FH (-64...0...+63)
The effect will apply both to Decay 1
and 2.
18H rr mm – – Drum instrument pitch coarse
rr : drum instrument note number
mm : 00H - 40H - 7FH (-64...0...+63)
19H rr mm – – Drum instrument pitch fine
rr : drum instrument note number
mm : 00H - 40H - 7FH (-64...0...+63)
1AH rr mm – – Drum instrument level
rr : drum instrument note number
mm : 00H - 7FH (0...maximum)
1CH rr mm – – Drum instrument panpot
rr : drum instrument note number
mm : 00H,01H-40H-7FH (RND,
L63...C...R63)
1DH rr mm – – Drum instrument reverb send level
rr : drum instrument note number
mm : 00H - 7FH (0...maximum)
1EH rr mm – – Drum instrument chorus send level
rr : drum instrument note number
mm : 00H - 7FH (0...maximum)
1FH rr mm – – Drum instrument variation send level
rr : drum instrument note number
mm : 00H - 7FH (0...maximum)
When Variation Connection = SYSTEM
mm : 00H, 01H-7FH(OFF,ON)
When Variation Connection = INSERTION
MSB 14H-1FH (for drums) is received when Multi Part
parameter PART MODE = DRUMS1,2.
*1 Refer to 1.2.4
*2 “– –” indicates that the setting value is ignored.
*3 Adjusts the time after the note is played until vibrato
begins to take effect.
The effect will begin more quickly for lower values, and
more slowly for higher values.
No effect if Bank Select MSB=127 is selected.