acid_curds

Acid Curds

Acid Curds is a basic chord sequencer. The app provides four 8-step chord progressions (in total), and CV-control over various parameters, including chord type, progression length, direction, voicing, inversion, etc. The four chord progressions can be chained in various ways, providing progressions from 1 to up to 32 chords. The chords/sequence data is stored along with the other settings (whenever settings are saved).

• the chords editor works much like the scale and sequence editors in Copiermaschine, Sequins, etc:

  • in the main menu, select which progression (#1-#4) to edit by adjusting the progression parameter.
  • then right-click on the item chords --> to open the chords-editor:
    • adjust the progression length by pointing the cursor to the far right (using the left encoder), then turn the right encoder.
    • turn the right encoder to change the selected chord-parameter (highlighted w/ white background).
    • turn the left encoder to either select which chord (step) to edit, or to select which step-feature to edit.
    • pushing the left encoder toggles between chord-select and feature-select.
    • push the right encoder to close the editor again.

• a chord (or step) consists of five features: quality/type (Q), voicing (V), inversion (I), base note (B), and the register/octave (O). most of the parameter values should be fairly self-explanatory.

• the 'base note' (or root note) of a chord can be set to either CV, in which case a chord will be formed based on the voltage present at input CV1 (TR1 in that case is used as the S+H clock, the chords progression will advance depending on the chords trg src setting); or, it can be set to a fixed value: #1, #2, #3, etc (these values are given in scale degrees, e.g. choosing #3 = the third note of a given scale).

• the playmode and direction settings offer various ways of moving through the sequence(s):

  • - (default): advance by trigger, using the chosen direction settings.
  • SEQ+1 - SEQ+3: ditto, but cycling through 2, 3, or 4 adjacent progressions (= chain up to 32 chords).
  • TR3+1 - TR3+3: ditto, but jumps to the next progression only if/when a trigger is received at the TR3 trigger inputs.
  • S+H#1 - S+H#4: CV-address, triggered by TR3 (= sample and hold).
  • CV#1 - CV#4: CV-address, free-running.

Inputs and outputs

I/O	Function	-
TR1	main clock / S+H input	-
TR2	chord advance trigger (if selected via chords trg src)	-
TR3	playmode trigger TR3+1 - TR3+3, CV-address trigger (S+H#1 - S+H#4)	-
TR4	progression reset	-
CV1	(mappable)	-
CV2	(mappable)	-
CV3	(mappable)	-
CV4	(mappable)	-
A, B, C, D	chord outputs	A is the base note

Available settings

Setting	Meaning
--> scale	edit current scale
root	scale root
progression	select progression #1 - #4
chords -->	edit progression/chords
playmode	chain sequences (SEQ+x), advance by TR3 (TR3+x), or CV-address
direction	forward, reverse, pendulum1, pendulum2 (repeat first/last), random, brownian
TR1 delay	TR1 trigger-to-processing latency
chords trg src	chords-trigger: TR1 or TR2
transpose	transpose (in scale-degrees)
octave	transpose in octaves

Controls

main menu

Control	Function
Left encoder (turn)	select scale
Left encoder (press)	activate scale
Left encoder (long press)	-
Right encoder (turn)	Navigation mode: move up and down through the menu items. Edit mode: increase or decrease the value being edited
Right encoder (press)	Toggle between menu navigation (selection) mode and value editing mode
Right encoder (long press)	app selection menu
Up button	toggle up/down by one octave
Down button	go to CV menu
Up button (long press)	screensaver
Down button (long press)	clear CV mapping

CV menu

• enter the CV menu by holding down the down button.
  • use the right encoder to assign CV input channels 1-4 to a channel parameter (currently available parameters are: root (scale/global), scale mask, transpose, octave, voicing, inversion, progression #, direction, and progression length.
  • return to the main menu by either pressing the up or down buttons.
  • clear all mappings (per channel) by long-pressing the down button.

chords editor

Control	Function
Left encoder (turn)	select chord-step, or select chord-feature
Left encoder (press)	toggle step-select / feature-select
Right encoder (turn)	1) adjust chord feature; 2) adjust progression length by pointing the cursor to the far right, then turn
Right encoder (press)	exit editor
Up button	go to next progression (edit 'offline')
Down button	go to previous progression (edit 'offline')
Left encoder (long press)	-
Down button long press	-
Right encoder (long press)	-- (app selection menu)
Up button long press	-- (screensaver)