let bpm b = cps (b/60)
let withmod a b c d = (whenmod a b . within (c, d))
let every' n o f = when ((== (o-1)) . (`mod` n)) f

let modtempo s e = (# nudge (scale 0 s $ fmap (**e) saw1))
let mt s d i = slow s . modtempo 0.3 3 $ density d $ i
let msil = mapM_ ($ silence)

let d'drum = d1
    d'kit = d2
    d'wax = d3
    d'nim = d4
    d'nim2 = d5
    d'bass = d6
    d'hi = d7

-- pt 1: intro

bpm 105
hush

d'drum $ slow 4 $ n "1" # s "drum"
d'wax $ slow 16 . striate 256 $ s "icarus"

d'kit $ n "[~ [0 2]/2]" # s "kit"
d'drum $ slow 8 $ n "[1*2, 0*8]" # s "drum"

d'wax $ retrig $ slow 20 . striate 256 $ s "icarus:1"
d'nim $ slow 16 $ striate 16 $ n "[0 1]/2" # s "nimble"
d'wax silence

d'drum $ slow 8 $ n "[1*2, 0 0 0 [0 ~! 0] ! 0 [0 0/4] 0]" # s "drum"
d'kit $ n "[[~ 0] [[2!! ~]/4 0]]/2" # s "kit"

d'kit $ withmod 11 5 0.5 1 (density 2) $
  n "[[~ 0] [[2!! ~]/4 0]]/2" # s "kit"

d'nim $ superimpose (iter 4) $
  slow 16 $ striate 256 $ n "[0 1]/2" # s "nimble"

let bass'osc1 = (# speed ((+0.8).(/1.5) <$> slow 2.5 sine1))

d'wax $ slow 16 . striate 256 $ s "icarus"

d'nim $ superimpose (iter 4 . bass'osc1) $
  slow 16 $ striate 256 $ n "[0 1]/2" # s "nimble"

d'kit $ whenmod 3 2 (density 2) $
  withmod 11 5 0.5 1 (density 2) $
  n "[[~ 0] [[2!! ~]/4 0]]/2" # s "kit"

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

d'bass $ 1.3 ~> sound "[bass, sine]/8"
  # gain "0.85"

-- pt 2: mod tempo

d'drum $ mt 16 2 $ n "[1*2, 0 0 0 [0 ~! 0] ! 0 [0 0/4] 0]" # s "drum"

d'nim $ superimpose (iter 4 . bass'osc1 . (# nudge "0")) $
  mt 16 1 $ striate 256 $ n "[0 1]/2" # s "nimble"

msil [d'bass, d'wax]
d'nim $ mt 16 1 $ striate 256 $ n "[0 1]/2" # s "nimble"

d'nim $ whenmod 5 3 rev $
  mt 16 1 $ striate 256 $ n "[0 1]/2" # s "nimble"

d'nim $ every' 2 2 (within (0, 0.5) (const silence)) $
  whenmod 5 3 rev $
  mt 16 1 $ striate 256 $ n "[0 1]/2" # s "nimble"

d'nim $ superimpose (iter 4 . bass'osc1 . (# nudge "0")) $
  every' 2 2 (within (0, 0.5) (const silence)) $
  whenmod 5 3 rev $
  mt 16 1 $ striate 256 $ n "[0 1]/2" # s "nimble"

-- pt 2.5: straighten up

d'drum $ slow 8 $ n "[1*2, 0 0 0 [0 ~! 0] ! 0 [0 0/4] 0]" # s "drum"

d'bass $ 1.3 ~> sound "[bass, sine]/8"
  # gain "0.85"

d'nim $ whenmod 4 2 (const silence) $
  slow 16 $ striate 16 $ n "[0 1]/2" # s "nimble"

d'kit $ every' 16 8 (const $ s "kit:3") $
  whenmod 3 2 (density 2) $
  withmod 11 5 0.5 1 (density 2) $
  n "[[~ 0] [[2!! ~]/4 0]]/2" # s "kit"

d'drum $ (whenmod 5 3 . every' 7 5) (0.5 ~>) $
  slow 8 $ n "[1*2, 0 0 0 [0 ~! 0] ! 0 [0 0/4] 0]" # s "drum"

d'bass $
  (0.3 ~>) $
  ((whenmod 5 3) . (whenmod 3 1)) (# speed "1.5") $
  slow 8 $ stack [
    gap 32 $ sound "bass",
    gap 32 $ sound "sine"
    ]
  # gain "0.85"

d'nim $ whenmod 4 2 (const silence) $
  slow 16 $ striate 16 $ n "[0 1]/2" # s "nimble"
  # vowel "e a"

{-
d'hi $ whenmod 16 8 (0.5 ~>) $
  slow 8 $ slowspread ($) [gap 16, striate 8] $
  n "[0 1]/2" # s "nimble" # speed "[-3 -2]"
  # gain "0.9"
-}

d'wax $ slow 16 . striate 256 $ s "icarus"

d'nim $ superimpose ((4 ~>) . iter 4) $
  whenmod 4 2 (const silence) $
  slow 16 $ striate 16 $ n "[0 1]/2" # s "nimble"
  # vowel "e a"

-- pt 3: hip hoppy

msil [d'drum, d'hi]

d'nim2 $ (0.5 ~>) $
  slow 16 $ striate 16 $ n "[0 1]/2" # s "nimble"

d'drum $ stack [
  n "[1, 0*2 [~ 0] ! ~]/4" # s "drum",
  4 ~> n "[~ 0 [~ 0/2 ~!] 0]/4" # s "sn" # gain "0.76"
  ]

d'bass $ 1.3 ~> sound "[bass, sine]/8"
  # gain "0.85"

let drum'sn1 = (# gain "0.65") . (0.25 ~>) . density 2
let drum'toms1 = within (0, 0.5) ((# gain "0.7") . (# n (irand 3)) . (# s "tom"))

d'drum $ stack [
  n "[1, 0*2 [~ 0] ! ~]/4" # s "drum",
  whenmod 5 3 (superimpose drum'sn1) $
  4 ~> n "[~ 0 [~ 0/2 ~!] 0]/4" # s "sn" # gain "0.76"
  ]

d'nim $ superimpose ((4 ~>) . iter 4) $
  whenmod 4 2 (const silence) $
  slow 16 $ striate 16 $ n "[0 1]/2" # s "nimble"

d'nim2 $ (0.5 ~>) $
  slow 16 $ striate 16 $ n "[0 1]/2" # s "nimble"
  # vowel "e a"

d'drum $ stack [
  n "[1, 0*2 [~ 0] ! ~]/4" # s "drum",
  whenmod 5 3 (superimpose (drum'toms1 . drum'sn1)) $
  4 ~> n "[~ 0 [~ 0/2 ~!] 0]/4" # s "sn" # gain "0.76"
  ]

d'drum $ stack [
  n "[1, 0*2 [~ 0] ! ~]/4" # s "drum",
  whenmod 7 6 (slowspread ($) [density 8 . rev . slow 4, (0.25 <~), (0.25 ~>)]) $
  whenmod 5 3 (superimpose (drum'toms1 . drum'sn1)) $
  4 ~> n "[~ 0 [~ 0/2 ~!] 0]/4" # s "sn" # gain "0.76"
  ]

d'nim $ superimpose ((4 ~>) . iter 4) $
  whenmod 4 2 (rev) $
  slow 16 $ striate 16 $ n "[0 1]/2" # s "nimble"

d'bass $
  (1.3 ~>) $
  ((whenmod 5 3) . (whenmod 3 1)) (# speed "1.5") $
  slow 8 $ stack [
    gap 32 $ sound "bass",
    gap 32 $ sound "sine"
    ]
  # gain "0.85"

d'hi $ whenmod 16 8 (0.5 ~>) $
  slow 8 $ slowspread ($) [gap 16, striate 8] $
  n "[0 1]/2" # s "nimble" # speed "[-3 -2]"
  # gain "0.9"

d'drum $ stack [
  (whenmod 8 5 . whenmod 7 4) (density 2 . rev) $
  n "[1, 0*2 [~ 0] ! ~]/4" # s "drum",
  whenmod 7 6 (slowspread ($) [density 8 . rev . slow 4, (0.25 <~), (0.25 ~>)]) $
  whenmod 5 3 (superimpose (drum'toms1 . drum'sn1)) $
  4 ~> n "[~ 0 [~ 0/2 ~!] 0]/4" # s "sn" # gain "0.76"
  ]

d'nim $ superimpose ((4 ~>) . iter 6) $
  whenmod 4 2 (rev) $
  slow 16 $ striate 16 $ n "[0 1]/2" # s "nimble"

-- pt 4: hip houtro
bpm 105

d'drum $ stack [
  (whenmod 8 5 . whenmod 7 4) (density 2 . rev) $
  superimpose (0.25 ~>) $
  n "[1, 0*2 [~ 0] ! ~]/4" # s "drum",
  whenmod 7 6 (slowspread ($) [density 8 . rev . slow 4, (0.25 <~), (0.25 ~>)]) $
  whenmod 5 3 (superimpose (drum'toms1 . drum'sn1)) $
  4 ~> n "[~ 0 [~ 0/2 ~!] 0]/4" # s "sn" # gain "0.76"
  ]

d'drum $ mt 16 16 $ stack [
  (whenmod 8 5 . whenmod 7 4) (density 2 . rev) $
  superimpose (0.25 ~>) $
  n "[1, 0*2 [~ 0] ! ~]/4" # s "drum",
  whenmod 7 6 (slowspread ($) [density 8 . rev . slow 4, (0.25 <~), (0.25 ~>)]) $
  whenmod 5 3 (superimpose (drum'toms1 . drum'sn1)) $
  4 ~> n "[~ 0 [~ 0/2 ~!] 0]/4" # s "sn" # gain "0.76"
  ]

d'nim2 $ (0.5 ~>) $
  mt 16 1 $ striate 16 $ n "[0 1]/2" # s "nimble"
  # vowel "e a"

d'nim $ superimpose ((4 ~>) . iter 6) $
  whenmod 4 2 (rev) $
  mt 16 1 $ striate 16 $ n "[0 1]/2" # s "nimble"
  # vowel (slow 2.1 "[u i]")
  # cut "4"

d'bass $
  (1.3 ~>) $
  ((whenmod 5 3) . (whenmod 3 1)) (# speed "1.5") $
  mt 16 2 $ stack [
    gap 32 $ sound "bass",
    gap 32 $ sound "sine"
    ]
  # gain "0.85"

msil [d'nim, d'nim2, d'wax]

d'drum $ mt 16 16 $ stack [
  (whenmod 8 5 . whenmod 7 4) (density 2 . rev) $
  superimpose (0.25 ~>) $
  n "[1, 0*2 [~ 0] ! ~]/4" # s "drum",
  whenmod 7 6 (slowspread ($) [density 8 . rev . slow 4, (0.25 <~), (0.25 ~>)]) $
  whenmod 5 3 (superimpose (drum'toms1 . drum'sn1)) $
  4 ~> n "[~ 0 [~ 0/2 ~!] 0]/4" # s "sn" # gain "0.76"
  ]

msil [d'kit, d'bass]

solo $ d'drum $ slow 16 . modtempo 0.6 4 $ density 16 $ stack [
  n "[1, 0*4 [~ 0*2] [~ 0/2 0 ~] ~]/4" # s "drum",
  4 ~> n "[~ 0 [~ 0/2 ~!] 0]/4" # s "sn" # gain "0.76"
  ]

hush