Tidal Cycles code:

--part 0
do
d4 $ s "insect*2 ~ ~"  # gain 2
d1 $ ccv "127 31 ~ ~" # ccn "0" # s "midi"

--part 1
do
d4 silence
d5 $ qtrigger $ filterWhen (>=0)$ s "jungbass:2"
d2 $ ccv "<120 100>" # ccn "1" # s "midi"

hush

--part 2

do
d5 $ s "can*4" <| n (shuffle 4 $ run 4)# gain 4
d1 $ ccv "127 30 100 10" # ccn "0" # s "midi"
d4 $ fast (range 1 4 $ slow 8 sine) $ s "cb"  # room (range 0 1 $ slow 4 $ saw)
d2 $ fast (range 1 4 $ slow 8 sine) $ ccv "<127 64 30 100>" # ccn "1" # s "midi"
d6 $ s "chin" <| n (shuffle 4 $ run 4) # gain (range 0 3 $ slow 4 $ saw)
d8 $ every 2 (fast 2) $ s "glasstap:1 glasstap:2"  #krush 30

do{
d4  $ fast 2 $  s  "click:2*2 ~ ~ click:2*2 ~ ~" #krush 20   # room (range 0 1 $ slow 4 $ saw);
d1 $ fast 2 $ ccv "127 64 ~ ~ 80 32 ~ ~" # ccn "0" # s "midi";
d7 $ fast 2 $ s "sine*4" # note(scale "<major minor shang chinese minor>" ("[0, 4, 7] [0, 5, 9] [0, 4, 9] [2, 5, 9]")+"<1 2 5>");
d5 $ qtrigger $ filterWhen (>=0) $ seqP [
  (0, 1, s "808mc" <| n (run 4)),
  (1,2, s "808mc" <| n (run 8)),
  (2,3, s  "808mc" <| n (run 16)),
  (3,4, s "808mc" <| n (run 8)),
  (4,5, s "808mc" <| n (run 4))
] #krush (range 0 9 $ slow 4 $ saw) #gain 2
}

do
d8 $ qtrigger $ filterWhen (>= 0) $ s "superhat*4"
    # note ("[6, 10, 2]" -"<1 1 2 5>")
    # gain 1.2
    # krush "<0 9 27>"
    # room 0.5
d6 $ qtrigger $ filterWhen (>= 0)  $ every 2 (const $ s  "super808*8" # note ("[6, 10, 2]" -"<1 1 2 5>")  # gain 1.2 # krush 15 # room 0.5  )
    $ s "~"
d2 $ qtrigger $ filterWhen (>= 0) $ ccv "<[100 10 60 30 100 10 60 30 ] ~>"#ccn "1" # s "midi"




hush

--part3
do
  d4 $ s "seawolf*2" <| n (slow 1 $ shuffle 2 $ run 2) #gain 2 #krush 9
  d2 $ ccv " 127 64" # ccn "1" # s "midi"

do
  d7 $ fast 0.5 $ s "sine*4" # note(scale "minor" ("[0, 4, 7] [0, 5, 9, 12] [0, 4, 9, 12] [2, 5, 9, 11, 14]")+"<1 2 3 4 5>")
  d3 $ fast 0.5 $ ccv "120 20 120 15" #ccn "3" #s "midi"
  d8 $ fast 0.5 $ s "ho?" <| n (shuffle 6 $ run 6)


do
d4 silence
d6 silence
d8 $  s "industrial" <| n (run 8)
d7 $ slow 4 $ s "sine*8" # note(scale "minor"("[0, 4, 7, 10, 14] [2, 5, 9, 12, 16] [0, 4, 7, 11, 14] [0, 5, 9, 12, 17]")-"<1 2 3 4 5>")#gain (range 1 0 $ slow 8 $ saw)
d1 $ slow 2 $ ccv " 127 64" # ccn "0" # s "midi" 
d3 $ slow 1 $ ccv "<40 ~>" # ccn "3" # s "midi"

hush

Hydra Code:

hush()

//part1
solid(0.11, 0.11, 0.58).
layer(solid(0.2,0.2,1)
.mask(noise(()=>cc[0]*5+2, 0.3)
  .posterize(10)
  .diff(noise(()=>cc[0]*5+2, 0.3).posterize(4).scrollX(0.01))
  .thresh(0.1, 0.1)
  .invert()
  .luma(0.1)))
  .layer(
  shape(99, ()=>cc[1]+Math.sin(time)*0.1)
  .diff(shape(99, ()=>cc[1]*0.99+Math.sin(time)*0.1))
  .thresh(0.1)
  .repeat(()=>cc[1]+1,()=>cc[1]+1)
  .scale(0.5,window.innerHeight/window.innerWidth,1)
  .luma(0.1))
  .out()


//part 2
solid(0.2, 0.2, 1)
.layer(
shape(4,0.5)
  .scale(1,0.1,2)
  .color(0.5,0.5,0.8)
  .luma(1,1)
  .scrollX(0.1,()=>cc[0]*-0.1)
  .kaleid(10)
  .scale(0.8,window.innerHeight/window.innerWidth,1))
  .layer(
    shape(4,0.5)
    .scale(1,0.1,2)
    .color(0,0,0.8)
    .luma(0.1,1)
    .scrollX(0.1,()=>cc[1]*-0.1)
    .kaleid(40)
    .scale(0.4,window.innerHeight/window.innerWidth,1))
  .modulate(noise(4,()=>cc[3]))
  .out()


// solid(0,0.6,1).out(o2)
//
// hush()
//
// shape(100, 0.1, 0.2).repeat(3)
//   .thresh(0.5)
//   .scrollX(0,()=>cc[0])
//   .scrollY(0,()=>cc[0])
//   .modulate(
//     noise(5,1))
//   .blend(o1,0.5)
//   .blend(o2,0.5)
//   .out()


  // src(o0).
  //   blend(o1,0.1).
  // out(o0)
  //
  // gradient([1,2,cc[1]]).
  // mask(shape(6,()=>cc[0]*0.3)).
  // modulate(osc()).
  // luma(0.5,0.1).
  // scrollX(() => Math.sin(time) * 0.5).
  // pixelate(cc[1]*300,()=>cc[1]*400).
  // repeat(()=>ccActual[0]/10,()=>ccActual[0]/10).
  // out(o1)

  // shape(5).
  // scale(4,window.innerHeight/window.innerWidth,1).
  // modulateScale(noise(() => Math.sin(time)*1.5)).
  // scrollX(0.1).
  // kaleid(100).
  // scale(4,window.innerHeight/window.innerWidth,1).
  // // rotate(() => Math.sin(time) * 0.5).
  // luma(0.5,0.1).
  // color(()=>cc[0]).
  // out(o1)


  // src(o0).
  //   blend(o1,0.1).
  // out(o0)
  //
  // hush()
  // //part 1
  //
  // gradient([1,2,cc[1]]).mask(voronoi(()=>ccActual[0]/10+1,1,ccActual[0]/100+0.1)).posterize(10, [0.1, 0.5, 1.0, 2.0]).kaleid(99).scale(1,window.innerHeight/window.innerWidth,1).
  // layer(
  //   shape(4,0.5).
  //   scale(1,0.01,2).
  //   luma(0.1,1).
  //   scrollX(()=>cc[2]-0.1).
  //   kaleid(50).
  //   repeat(()=>cc[2]*2).
  //   rotate(()=>cc[2]).
  //   scale(1.5,window.innerHeight/window.innerWidth,1)
  // ).
  // out()

Organization:

I want to describe the feeling of a sudden rain in this project.

The soundtrack is divided into 4 parts: introduction, beats, chords and additional sounds. Before the rain started, there were some sounds of insects, indicating it was a tranquil summer night. After the bass sounded, it started raining, and the raindrops fell onto different objects. The chord described the vibe of the rain. It started light and gentle, became harder and stronger, and finally diminished. The visuals also simulate the rain by using noise and circles to imitate how raindrops fall onto water.