teletype tricéphale: a pentatonic generative sequencer with three playheads for teletype and grid

tt_tricephale.txt

TRICEPHALE


#1
A WRAP + A 1 0 15
IF G.FDR.EN A: Y A; X 1; $ 5
$ 6
EVERY 64: $ 4

#2
B WRAP + B 1 0 15
IF G.FDR.EN B: Y B; X 2; $ 5
$ 6

#3
C WRAP + C 1 0 15
IF G.FDR.EN C: Y C; X 3; $ 5
$ 6

#4
I + G.FDR.N 16 RRAND -1 1
DRUNK WRAP I 0 11
IF G.BTN.V 2: G.FDR.N 16 DRUNK

#5
I + PN 1 G.FDR.N 16 0
CV X N + P G.FDR.N Y I; TR.P X

#6
G.CLR; G.REC A 3 1 5 -3 8
G.REC B 3 1 5 -3 6
G.REC C 3 1 5 -3 4
EVERY 32: $ 7

#7
I G.BTN.V 0
IF I: G.FDR.N RAND 15 RAND 4
I G.BTN.V 1
IF I: G.BTN.PR RRAND 32 47 1

#8
I - G.BTNI 32
G.FDR.EN I EZ G.FDR.EN I

#M
L 0 15: G.FDR.EN I 0
L 32 47: G.BTN.PR I 0
L 0 2: G.BTN.PR I 0
DRUNK.MAX 11; DRUNK.WRAP 1
DRUNK 0; Z 0; D 0

#I
G.RST; PN.L 0 5; PN.L 1 12
G.FDX 0 0 3 1 5 1 0 0 16 1
G.BTX 0 0 0 1 1 1 6 0 3 1
G.FDR 16 4 0 PN.L 1 1 2 6 0
G.BTX 32 0 1 1 1 1 6 8 16 1
A 0; B 0; C 0; M.ACT 0; $ 9

#P
5	12	0	0
1	1	1	1
0	0	0	0
63	63	63	63

0	0	0	0
2	7	0	0
5	2	0	0
6	9	0	0
8	4	0	0
0	11	0	0
0	6	0	0
0	1	0	0
0	8	0	0
0	3	0	0
0	10	0	0
0	5	0	0
0	0	0	0
0	0	0	0
0	0	0	0
0	0	0	0
0	0	0	0
0	0	0	0
0	0	0	0
0	0	0	0
0	0	0	0
0	0	0	0
0	0	0	0
0	0	0	0
0	0	0	0
0	0	0	0
0	0	0	0
0	0	0	0
0	0	0	0
0	0	0	0
0	0	0	0
0	0	0	0
0	0	0	0
0	0	0	0
0	0	0	0
0	0	0	0
0	0	0	0
0	0	0	0
0	0	0	0
0	0	0	0
0	0	0	0
0	0	0	0
0	0	0	0
0	0	0	0
0	0	0	0
0	0	0	0
0	0	0	0
0	0	0	0
0	0	0	0
0	0	0	0
0	0	0	0
0	0	0	0
0	0	0	0
0	0	0	0
0	0	0	0
0	0	0	0
0	0	0	0
0	0	0	0
0	0	0	0
0	0	0	0
0	0	0	0
0	0	0	0
0	0	0	0
0	0	0	0

#G
1110000000000000
0000000000000000
1110101010100111
0000000000000000
0000000000000000
0000000000000000
0000000000000000
0000000000000000
0000000000000000
0000000000000000
0000000000000000
0000000000000000
0000000000000000
0000000000000000
0000000000000000
0000000000000000

0	4	0	0	0	3	0	0	0	0	0	0	0	0	4	0
1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0

tricéphale: a pentatonic generative sequencer with three playheads for teletype and grid

sixteen step sequencer
five note scale available for each step, default is pentatonic major
playheads 1-3 move independently and are advanced via triggers 1-3

the first three buttons on the first row toggle generative functionality
button 1: if on, every 32 times any note is played, a random step is replaced with a new note
button 2: if on, every 32nd note a random step in the sequence is toggled on or off
button 3: if on, every 64th step in the sequence will move up or down one position in the circle of fifths

the twelve button fader on the top row changes the key of scale. it is set as the circle of fifths, starting with c

for the second row and below, each column represents a step in the sequence

the buttons on row two enable or disable a step in the sequence. if the step is enabled it plays when the playhead reaches it. if it is disabled, a note will not be played during that step.

the bottom five rows hold a five button fader in each column. the five buttons in the fader set the note to play

documentation

init:
resets grid, sets pattern lengths
initializes 16 step faders for note selection
initializes generative toggle buttons on first row
initializes key change fader on first row
initializes step toggle buttons on second row
initializes variables, disables metro (used for more init), calls metro for more init

metro:
set all step faders to first value (first note of scale)
enable all steps
enable all generative toggle buttons
configure DRUNK for generative key changes

script 1:
triggered
main clock and playhead A
advances playhead A and if the step is enabled calls script 5 to play step
calls script 6 to redraw playheads
every 64 calls call script 4 to check for key change

script 2:
triggered
playhead B
advances playhead B and if the step is enabled calls script 5 to play step
calls script 6 to redraw playheads
every 64 calls call script 4 to check for key change

script 3:
triggered
playhead C
advances playhead C and if the step is enabled calls script 5 to play step
calls script 6 to redraw playheads

script 4:
called every 64 steps by script 1
advances key sequence -1, 0 or 1 steps

script 5:
called by scripts 1, 2 and 3
plays a note in the current key

script 6:
redraws playheads
every 32 calls, call script 7 to change a note in sequence

script 7:
if button is enabled, change and enable or disable a note in the sequence

script 8:
called by step toggle button press
toggles a step off or on

patterns:
0 holds N values of available notes for each step, used by step faders
1 holds key values in order of the circle of fifths starting at c. used by key change fader

variables:
A holds position of playhead A
B holds position of playhead B
C holds position of playhead C
X holds number of for playhead that needs script 6
Y holds position of playhead that needs script 6