{-
defs
-}

let bpm b = cps (b/60)
    withmod a b c d = (whenmod a b . within (c, d))
    every' n o f = when ((== (o-1)) . (`mod` n)) f
    msil = mapM_ ($ silence)
    tmod s e = (# nudge (scale 0 s $ fmap (**e) saw1))

let swing a = within (0.1, 0.4) (a ~>) . within (0.6, 0.9) (a ~>)
    swing' = swing 0.14 --0.05

let d'drum = d1
    d'bass = d3
    d'wax = d4
    d'nim = d5
    d'hi = d6

-- original bpm = 105
let tmod' s e = tmod (s*(1/(105/60))) e
    mt s d i = slow s $ tmod' 0.5 3 $ density d $ i

bpm 105

{----------
drum + perc
----------}
hush
d'drum silence

d'drum $
  --within (0.5, 1) (rev) $ -- soften
  --mt 16 16 $
  swing' $
  stack [
    superimpose (0.25 ~>) $
    --n "1/4"
    --n "[1*2, 0*8]/8"
    --n "[1*2, 0 0 0 [0 ~! 0] ! 0 [0 0/4] 0]/8"
    n "[1*2, 0 0 0 [0 ~! 0] ! 0 [0 0/4] [0! ~!]]/8"
    # s "drum",
    --every' 16 16 (const $ s "kit:3") $
    whenmod 3 2 (density 2) $
    (whenmod 11 5 . within (0.5, 1)) (density 2) $
    --n ""
    --n "[~ [0 2]/2]"
    n "[[~ 0] [[2!! ~]/4 0]]/2"
    # s "kit",
    --n ""
    --n "[~ [~ 1]]/2"
    --n "[~ [~ 0/8 1 0/2]]/2"
    --0.5 <~ n "[~ [~ 0/8 1 0/2]]/2"
    n "[~ [1 0/8 1/2 0/2]]/2"
    --n "[~ [1 0/8 1 0/2]]/2"
    # s "sn"
    # gain "0.8"
    ]

{-----
icarus
-----}
hush
d'wax silence

d'wax $
  --every' 2 2 (within (0, 0.75) (iter 16)) $
  slow 16 . striate 256 $ s "icarus"

d'wax $ retrig $ s "icarus:1/20"

{-----
nimble
-----}
hush
d'nim silence

d'nim $
  --{-
  superimpose (
    --iter 4 .
    iter 6 .
    (# speed ((+0.8).(/1.5) <$> slow 2.5 sine1)) .
    (# nudge "0")
    ) $
  --}
  --{-
  (whenmod 5 2 $
   slowspread (\x -> within (0.5, 1) x) [
     id, density (5%3), rev, density (4%3), id, rev, (0.5 <~)
     ]) $
  --}
  whenmod 4 2 (const silence) $
  --mt 16 1 $
  slow 16 $
  striate 256 $ n "[0 1]/2" # s "nimble"
  -- # shape ((/4) <$> density 1.9 sine1)

{---
bass
---}
hush
d'bass silence

let s = striate 16
  in d'bass $
  whenmod 3 2 (within (0, 0.5) (const silence)) $
  whenmod 10 8 (within (0.5, 1) (const silence)) $
  --{-
  within (0, 0.5) (
    (# speed "-1") .
    smash 4 [(4%3),(5%3)]
    ) $
  --}
  slow 8 $ stack [
    s $ sound "bass",
    s $ sound "sine"
    ]
  # gain "0.8"

{---------
alt nimble (wip)
---------}
hush
d'hi silence

d'hi $
  swing' $
  within (0.5, 1) (density 2) $
  whenmod 16 8 (0.5 <~) $
  (0.5 ~>) $
  slow 8 $
  gap 64 $
  n "[0 1]/2" # s "nimble"
  -- # speed "[-3 -4]"
  # speed ((-4+).(*(-1)) <$> density 1.1 sine1)
  -- # vowel "[u a e]/3"

hush