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NISP

Scheme dialect livecoding tracker for norns

Work in progress. Everything is subject to change

Controls

~|open / close repl

shift + ctrl|start / stop playback

capslock|toggle follow mode

shift + 1 - 4|mute track

enter|open text editor (third column of track must be selected)

esc|close text editor

shift + enter|save expression in cell (while in text edit mode)

ctrl + c / v|copy / paste

shift + esc|open / close norns menu

ctrl + left / right|switch menu tabs

shift + up / down|fast nav between samples in params menu

Commands

function arguments description
(def) symbol, value define a symbol
(lambda) args, function anonymous function
(quote) ' expr returns unevaluated expression
(if) cond, expr 1, expr 2 evaluate expr 1 if cond is true, else evaluates expr 2
(when) cond, expr evaluate expr if cond is true
(@) track optional returns current position
(bpm) value set global bpm
(length) value set pattern length
(div) value set track speed divider
(jmp) pos jump to position
(skip) pos skip current step
(ever) N, expr evaluate expression every N cycle
(mute) track optional mute track
(sync) track optional sync positions to track, or to global pos
(save) id save pattern
(load) id load pattern
(note) value write note at current position
(sample) value write sample at current position
(pos) value set position of current sample
(param) value set current sample param
(help) - display help
Math

(+) (-) (*) (/) (%) (^) (=) (eq) (>) (<) (<=) (>=) (rnd)

Other

(list) (list?) (append) (apply) (begin) (car) (cdr) (cons) (len) (get) (put) (nil?) (num?) (print) (concat) (map) (#t) (#f)

Examples

Functions can be executed either live in repl or from pattern cells.

(def A 1) - sets symbol A to 1

(print "Hello") - double quotes for strings

(def A (lambda () (print "Hello"))) - defines a function (A) with no arguments

(def A (lambda (a b c) (+ a b c))) - defines a function (A) which takes 3 arguments and returns their sum.

(get '(1 2 3 4) 1) - returns first element from list

(bpm 120) - set bpm to 120

(jmp) - set current track position to the very beginning

(pos (rnd 1 99)) - set random start position for current sample

(atk 0.25) - set current sample attack to 0.25

Extras

more about scheme

params shortenings
atk  - amp_env_attack
dec - amp_env_decay
sus - amp_env_sustain
rel - amp_env_release
detune - detune_cents
strtch - by_percentage
ctf - filter_freq
res - filter_resonance
ftype - filter_type
qlt - quality
fm-lfo1 - freq_mod_lfo_1
fm-lfo2 - freq_mod_lfo_2
f-lfo1 - filter_freq_mod_lfo_1
f-lfo2 - filter_freq_mod_lfo_2
p-lfo1 - pan_mod_lfo_1
p-lfo2 - pan_mod_lfo_2
a-lfo1 - amp_mod_lfo_1
a-lfo2 - amp_mod_lfo_2
fm-env - freq_mod_env
f-fm-env - filter_freq_mod_env
f-fm-vel - filter_freq_mod_vel
f-fm-pr - filter_freq_mod_pressure
f-track - filter_tracking
p-env - pan_mod_env
m-atk - mod_env_attack
m-dec - mod_env_decay
m-sus - mod_env_sustain
m-rel - mod_env_release

Known bugs-features:

copy-pasted expression cells are linked, so editing one would affect all others.

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scheme dialect livecoding tracker for norns

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