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GRP Synthesizer R24 Owner's Manual

Step sequencer
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Grp Synthesizer
R24 Step Sequencer
Owner's Manual
Version 1.2
5
01
4
6
3
7
2
8
A
1
9
0
10
b
#
b
PORTAMENTO
ON
X8
GATE 2
FNC 2
END STP
GATE 2
RNG X2
S&H
QNT
GATE 1
OFF
NORM
GATE 1
5
09
4
6
3
7
2
8
B
1
9
0
10
b
#
b
PORTAMENTO
ON
X8
GATE 2
FNC 2
END STP
GATE 2
RNG X2
S&H
QNT
GATE 1
GATE 1
OFF
NORM
5
17
4
6
3
7
2
8
1
9
C
0
10
b
#
b
PORTAMENTO
ON
X8
GATE 2
FNC 2
END STP
GATE 2
RNG X2
S&H
QNT
GATE 1
OFF
NORM
GATE 1
GLOBAL SETTINGS
STORE
PROGR
www.grpsynthesizer.it
02
03
04
#
b
#
b
#
FNC 2
END STP
GATE 2
FNC 2
END STP
GATE 2
FNC 2
END STP
GATE 2
OFF
NORM
GATE 1
OFF
NORM
GATE 1
OFF
NORM
GATE 1
10
11
12
#
b
#
b
#
FNC 2
END STP
GATE 2
FNC 2
END STP
GATE 2
FNC 2
END STP
GATE 2
GATE 1
GATE 1
GATE 1
OFF
NORM
OFF
NORM
OFF
NORM
18
19
20
#
b
#
b
#
FNC 2
END STP
GATE 2
FNC 2
END STP
GATE 2
FNC 2
END STP
GATE 2
OFF
NORM
GATE 1
OFF
NORM
GATE 1
OFF
NORM
GATE 1
ASSIGN
CLOCK
ADVANCE MODE
EXT
ROW A
5
4
6
INT
MIDI
3
7
CLK SEL
ROW B
2
8
1
9
0
10
ROW C
FREQUENCY
CLK MOD
05
06
07
b
#
b
#
b
#
FNC 2
END STP
GATE 2
FNC 2
END STP
GATE 2
FNC 2
END STP
OFF
NORM
GATE 1
OFF
NORM
GATE 1
OFF
NORM
13
14
15
b
#
b
#
b
#
FNC 2
END STP
GATE 2
FNC 2
END STP
GATE 2
FNC 2
END STP
GATE 1
GATE 1
OFF
NORM
OFF
NORM
OFF
NORM
21
22
23
b
#
b
#
b
#
FNC 2
END STP
GATE 2
FNC 2
END STP
GATE 2
FNC 2
END STP
OFF
NORM
GATE 1
OFF
NORM
GATE 1
OFF
NORM
MAIN
A+B,C
ON
FW
BW
A,B,C
A+B+C
SEQ MODE
GLOBAL LOOP
FW/BW
PNDL
GATE ON
PLAY
ALT
RND
RUN/STOP
STEP ADV
®
Grp Synthesizer
R24
1
GATE OUT
08
D
D
STEP GATE
ON
1.2.3.2.1
/16
1.1.2.1
/8
1.3.5
X4
X4
/4
1.2.1
X3
X3
/3
FIRST GATE
1.2
X2
X2
/2
b
#
RESET
GATE 2
FNC 2
END STP
END G ATE
GATE 1
OFF
NORM
ORDER
STP RPT
ROW RPT
ADV DIV
GATE OUT
16
D
D
STEP GATE
ON
1.2.3.2.1
/16
1.1.2.1
/8
1.3.5
X4
X4
/4
1.2.1
X3
X3
/3
FIRST GATE
1.2
X2
X2
/2
b
#
RESET
GATE 2
FNC 2
END STP
END G ATE
GATE 1
ORDER
STP RPT
ROW RPT
ADV DIV
OFF
NORM
GATE OUT
24
D
D
STEP GATE
ON
1.2.3.2.1
/16
1.1.2.1
/8
1.3.5
X4
X4
/4
1.2.1
X3
X3
/3
FIRST GATE
1.2
X2
X2
/2
b
#
RESET
GATE 2
FNC 2
END STP
END G ATE
GATE 1
OFF
NORM
ORDER
STP RPT
ROW RPT
ADV DIV
PULSE WIDTH
REMOTE
MOM SWITCH - 0/+5V
5
4
6
3
7
SHIFT
2
8
RUN/STOP
1
9
0
10
GATE
RESET
RESET
MOM S WITCH
PW MOD
CV OUT
CONTROL IN
ROW GATE
0/+8V
0/+5V
A
GATE 2
+B+C
CV OUT
A
+B+C
STEP REPEAT
ADV DIV
GATE 1
A
+B+C
ORDER
ROW REP EAT
TRNP
A
+B+C
CV OUT
CONTROL IN
0/+5V
ROW GATE
0/+8V
GATE 2
B
CV OUT
B
STEP REPEAT
ADV DIV
GATE 1
B
ORDER
ROW REP EAT
TRNP
B
CV OUT
CONTROL IN
ROW GATE
0/+8V
0/+5V
GATE 2
C
CV OUT
C
STEP REPEAT
ADV DIV
GATE 1
C
ORDER
ROW REP EAT
TRNP
C
CLOCK
CONTROL IN
0/+5V
0/+5V
LOOP ON/OFF
CLOCK IN
ADV MODE
SEQ CLK MOD
GLIDE ON/OFF
CLOCK OUT
SEQ MODE
SEQ P W MOD

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Summary of Contents for GRP Synthesizer R24

  • Page 1 Grp Synthesizer R24 Step Sequencer Owner’s Manual Version 1.2 GATE OUT CV OUT CONTROL IN STEP GATE ROW GATE 0/+8V 0/+5V 1.2.3.2.1 1.1.2.1 1.3.5 1.2.1 FIRST GATE GATE 2 +B+C CV OUT +B+C STEP REPEAT ADV DIV PORTAMENTO RESET GATE 2...
  • Page 2 Grp R24 Step Sequencer – Owner’s Manual This page is intentionally blank...
  • Page 3 Grp R24 Step Sequencer – Owner’s Manual CONTENTS Foreword Warnings and Specifications R24: Main Functions STEP Parameters Pot Value Switch GATE 1 / OFF / GATE 2 Switch OFF / FNC 1 / FNC 2 Switch NORM / SKIP / END STEP ROW Parameters Management Parameters (Rows A, B &...
  • Page 4 Grp R24 Step Sequencer – Owner’s Manual Port ORDER Port STEP REPEAT Port ROW REPEAT Port CLOCK DIV Port TRNP B Connections GATE OUT (Row C) STEP GATE FIRST GATE END GATE ROW GATE GATE 1 B GATE 2 B...

  • Page 5: Menu Mode

    Grp R24 Step Sequencer – Owner’s Manual Port ADV Mode Port SEQ CLK MOD Port SEQ MODE Port SEQ PW MODE Section Global Settings From BPM screen to Parameters Display Menu Navigation Available Menu Menu MIDI Parameter Channel Transmit Parameter Channel Receive...

  • Page 6: Maintenance

    Although you are a rockstar, NEVER place cans of beer, coke, water (?) or other potentially spilling liquids on or near the instrument.  The Grp R24 Sequencer is an heavy unit: place it on a suitable solid surface or table. MAINTENANCE ...
  • Page 7 Steps each one), one Sequence max 16 Steps plus one Sequence Max 8 Steps in parallel, or with only one big Sequence of max 24 Steps. Every Row A, B and C has a several parameters per Row and per Step; so, the R24 Step Sequencer architecture is organized in an easy structure: ...

  • Page 8: Step Parameters

    Grp R24 Step Sequencer – Owner’s Manual STEP PARAMETERS Following descriptions are valid for every Step on Rows A, B & C. Each Step on every Row has: LED turns ON when Step is played; still, the color is red when Step sends its Gate on Gate Bus 1, color is blue when Gate goes on Gate Bus 2.
  • Page 9 Grp R24 Step Sequencer – Owner’s Manual NOTE: a Step with two or three bounces/Ratchet mantains the same length of other Steps; bounces density is created with brand new Gate On/Off articulations. NOTE: to reach full menu of available functions assignable to both positions of the switch, see below the DISPLAY Parameter Section.
  • Page 10 Grp R24 Step Sequencer – Owner’s Manual ROW PARAMETERS Each Row has management parameters (on left-hand column) and interpration (on right-hand column) influencing all active Steps. Many parameters are in common for all three Rows A, B and C; on some cases, parameters are available only on certain Rows; the following descriptions highlights on each case parameters available on selected Sequencer’s Rows.
  • Page 11 NOTE: Each Row has its own independent section, but “which section” is active is displayed by the ON LED and it’s decided with the selected SEQ MODE in R24 Sequencer. So, if R24 acts like a single Sequencer with 24 Steps (Mode A+B+C), there’ll be just one control unit turned on for Row A; when R23 acts like a dual Sequencer 16+8 Steps (Mode A+B, C), there’ll be two control units turned on for...
  • Page 12 (options X4, X3, X2, corresponding to four, three and two repetitions for Row). On completion of the number of repetition specified, Row playback stops. NOTE: This parameter is active only if mode GLOBAL LOOP (in the MAIN Section of R24 Sequencer) is in OFF position.
  • Page 13 Grp R24 Step Sequencer – Owner’s Manual ROW CONNECTIONS Each Row has dedicated connections for transmission of analog controls (CV and Gate) and for remote control – from external analog equipment – on most important parameters. Connections GATE OUT (Row A) This block contains four connections.
  • Page 14 Row and Sequence. Will be emitted only CV for Steps 1-8 if Step Sequencer R24 is in SEQ MODE A,B,C; will be emitted CV for Steps 1-16 if R24 is in SEQ MODE A+B,C; will be emitted CV for Steps 1-24 if R24 is in SEQ MODE A+B+C. In this way, as stated before, user can avoid repatching cables when changin configuration of SEQ MODE.
  • Page 15 Step (see NOTE below) for Row and Sequence. Will be emitted only CV for Steps 9-16 if Step Sequencer R24 is in SEQ MODE A,B,C. In this way, as stated before, user can avoid repatching cables when...
  • Page 16 Clock signals generated and received by Step Sequencer R24), user can choose if Steps will advance with a rhythmic division independent on each Row. Port CLOCK DIV is enabled to receive an external CV comprised between 0 and +5V for choosing the selected rhythmic division.
  • Page 17 Step (see NOTE below) for Row and Sequence. Will be emitted only CV for Steps 17-24 if Step Sequencer R24 is in SEQ MODE A,B,C. In this way, as stated before, user can avoid repatching cables when changin configuration of SEQ MODE.
  • Page 18 Clock signals generated and received by Step Sequencer R24), user can choose if Steps will advance with a rhythmic division independent on each Row. Port CLOCK DIV is enabled to receive an external CV comprised between 0 and +5V for choosing the selected rhythmic division.

  • Page 19: Sequence Parameters

    Grp R24 Step Sequencer – Owner’s Manual SEQUENCE PARAMETERS This section comprises all controls and selections that influence the whole functioning of R24 Step Sequencer. There is a dedicated block of connections for remote control; see below. Section ASSIGN Three selectos ROW A, ROW B, ROW C simplify choosing Row parameters for editing on Display.
  • Page 20 Grp R24 Step Sequencer – Owner’s Manual MIDI Clock (position MIDI). The EXT Clock signal is received at input port CLOCK IN available in CLOCK section of Sequencer Connections. Clock Source choosed is confirmed by corresponding LED. Switch CLK MOD With this switch, you can assign values from Steps in Row C to internal Clock modulation.
  • Page 21 Button STEP ADV For adance one Step at time during Sequencer programming and Step tuning; with STEP ADVANCE, Step Sequencer R24 emits Gate Out at 100% of duration, mantaining constantly open envelopes with enough Sustain level, facilitating oscillator tunings and Step value settings.
  • Page 22 Grp R24 Step Sequencer – Owner’s Manual Section PULSE WIDTH Contains controls for varying simmetry in Sequence PW Gate; by default, Gate has a on/off percentage at 50%, it can vary form full staccato (min PW value) to full legato (max PW value).
  • Page 23 Grp R24 Step Sequencer – Owner’s Manual SEQUENCE CONNECTIONS Contains connections for remote control of main parameters of the whole Sequencer. Section REMOTE This section contains four ports. RUN/STOP; Sequence play or stop. Remote control needs a Gate On transient rising from 0 to +5V;...
  • Page 24 Grp R24 Step Sequencer – Owner’s Manual ADV MODE; FW, BW, FW/BW, PNDL, ALT, RND; SEQ CLK MOD; On/Off; SEQ MODE; A,B,C; A+B,C; A+B+C; SEQ PW MODE; On/Off...
  • Page 25 From BPM screen to Menus in Parameter Display Section At power-up, after a brief check, R24 sets on BPM screen, visualizing actual BPM speed; you can vary speed with FREQUENCY control in CLOCK Section near the Display. Picture above shows DISPLAY at 120 BPM. This screen is external to Menu organization of parameters and is visible during the whole standard playback of Step Sequencer.
  • Page 26 All MIDI parameters separately editable on each Row. TIME DIVISION Define how R24 Step Sequencer will advance against Clock. FUNCTION The four function available to be assigned – Row per Row – on position FNC 1 and FNC 2 of switch OFF / FNC1 / FNC 2.

  • Page 27: Clock Division

    Grp R24 Step Sequencer – Owner’s Manual MEMORIES Writing and reading procedures for 64 internale memories. ORDER User’s programmable law for reading Steps in a specific order. There are 24 available memory locations. CLOCK DIVISION Dividing Clock factor separately adjustable on each Row.
  • Page 28 Grp R24 Step Sequencer – Owner’s Manual Menu MIDI Parameters and settings are independent on each Row A, B or C. MIDI Menu is reachable with INC and DEC buttons; with PROGR button, you’ll enter into the Menu and, once inside, you’ll scroll available parameters with buttons INC and DEC;...
  • Page 29 Grp R24 Step Sequencer – Owner’s Manual Parameter Velocity (State On/OFF, Fila A, B; Value 0-127) You can use programmed Step values in Row C like Key Velocity values (e.g. second Data Byte) applyable to programmed note in Rows A, B or A&B. This can be handy when Sequencer is in SEQ MODE A,B,B or A+B,C.
  • Page 30 (Mode 1 / Mode 2) Select the way R24 works with incoming MIDI Notes for real-time transpose. In MODE 1, R24 should receive MIDI Notes on all three channels corresponding at Rows A, B  and C (See above, parameter MIDI/Channel Receive).
  • Page 31 Grp R24 Step Sequencer – Owner’s Manual MENU TIME DIVISION Contains only one parameter for defining – in common for all three Rows – rhythmic value of Steps evaluated against Clock MIDI, INT or EXT. NOTE: To obtain an independent advancing speed on each Row, use CLK DIV parameter, available on each Row’s control unit (Front Panel, column at right of Steps):...

  • Page 32: Menu Function

    Grp R24 Step Sequencer – Owner’s Manual MENU FUNCTION Contains a menu of functions applyable independently on Rows A, B and C. Each Row can have a couple of functions freely user’s selectable and assigned on both physical position of switch OFF / FNC1 / FNC2 available on each Step.

  • Page 33: Menu Clock

    Grp R24 Step Sequencer – Owner’s Manual MENU CLOCK Sets density of Clock pulses transmitted on CLOCK OUT port and received at CLOCK IN port needed for advance each Step. Parameter Clock (Clock Out, In; Density 1, 24, 48 On density 1, each pulse received at port CLOCK IN will advance one Step in Sequence; if density selected is 24 or 48, you’ll need 24 or 48 pulses to advance one Step in Sequence.

  • Page 34: Menu Memory

    Grp R24 Step Sequencer – Owner’s Manual MENU MEMORY Contains commands for write or read data into 64 available memory locations o R24. Contains too access to Panel Mode (e.g. user works with “the real physical position” of all control on the front panel.

  • Page 35: Menu Order

    Grp R24 Step Sequencer – Owner’s Manual MENU ORDER With this menu, you can customize Row per Row the rules of active Steps advance and iteration. The brand new law user’s customizable can be recalled later turning on the D position in LED ladder segment on ORDER parameter available on each Row’s control unit.
  • Page 36 Select previously recorded ORDER memory location with INC and DEC; confirm with STORE; Display will shows shortly “write”.  With a second press on STORE, Display will goes back to BPM Mode and R24 Step Sequencer is ready to play.
  • Page 37 PROGR to go back to Row’s selection. NOTE: The combined action of CLOCK DIVIDER (especially if set on extreme dividing factors) and TIME DIVISION on CLOCK source, can lead R24 Step Sequencer to extremely sloooooow Step advance behavior. Be warned.
  • Page 38 Gives access to calibration and reset procedures. Calibration routines aren’t user accessible, so there is a 4-digit password to avoid undesired tampering. Parameter Reset For driving back internal settings on Step Sequencer R24 to pristine factory condition.  Select Menu Factory with INC and DEC buttons; confirm with PROGR.
  • Page 39 Grp R24 Step Sequencer – Owner’s Manual...
  • Page 40 Grp R24 Step Sequencer – Owner’s Manual © ® October 2016 Manual: Enrico Cosimi Grp Synthesizer S.r.L. Via Formello, 17 Monte Porzio Catone 00040 (RM) p.iva: 07434001009...
  • Page 41 Grp R24 Step Sequencer – Owner’s Manual http://www.grpsynthesizer.it/...

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