((t>>1)*(6&t>>9)%127)|t>>3&t>>7

a=(t>>9)/5,T=t*a,T&128+T*1.6&128

cutehup

 typeof fx == "undefined" ? fx = new Float32Array(4e6) : 0,
typeof $b == "undefined" ? $b = [] : 0, fxi = 0, ech$ = 0,

lpf = LowPassFilter = (i, f) => (
	fxii = fxi++, 
	fx[fxii] ??= 0, 
	fx[fxii] += (i - fx[fxii]) * f
),

hpf = HighPassFilter = (i, f) => (i - lpf(i, f)),
bpf = BandPassFilter = (i, hf, lf) => (hpf(lpf(i, hf), lf)),
nf = NotchFilter = (i, lf, hf) => (hpf(i, hf) + lpf(a, lf)) / 1.75,
lbf = LowBoostFilter = (i, f, v) => (i + lpf(i, f) * v),
hbf = HighBoostFilter = (i, f, v) => (i + hpf(i, f) * v),
bbf = BbfBoostFilter = (i, hf, lf, v) => (i + bpf(i, hf, lf) * v),

/* feeshbread - 6th Wave (Filters) */
lpf2 = TwoPoleLowPassFilter = (i, f) => (lpf(lpf(i, f), f)),
hpf2 = TwoPoleHighPassFilter = (i, f) => (hpf(hpf(i, f), f)),

lpr = LowPassResonance = (i, f, r) => (
	fxii = fxi++, 
	t ? 0 : (fx[fxii+'lp6'] = 0, fx[fxii+'lp12'] = 0),
	ct = Math.min(f, .999),
	R = r + r / (1 - ct),
	fx[fxii+'lp6']+=ct*(i-fx[fxii+'lp6']+R*(fx[fxii+'lp6']-fx[fxii+'lp12'])),
	fx[fxii+'lp12']+=ct*(fx[fxii+'lp6']-fx[fxii+'lp12']
	)),

hpr = HighPassResonance = (i, f, r) => (i - lpr(i, f, r)),

/* insanity's Peak Filter */
pf = PeakFilter = (i, f, r, v) => (i + hpr(lpr(i, f, r), f, r) * v),

(echo=(delay=12288,code,fdbk=.5,amt=0)=>((ech$++,($b[ech$]??=Array(delay).fill(0)),(ech=(code%256)+(ot=$b[ech$][t%delay])),($b[ech$][t%delay]=ech*fdbk),(code*(1-amt)/2)+ot/2*amt))),
deNaN=i=>isNaN(i)?null:i,
n=i=>2**(i/12),
ts=t*n(-22)*440*256/38229.333,

B=t=>((t%256)/127.5)-1,

a=echo(12288,B((((sinh(sin(ts/2*PI/32*n((sqi=[0,4,7,11])[(t>>12)%4])*n((sq="3414")[(t>>15)%4]))*4)+64)%256*(1-t%16384/13300)))+128),.3,.5)*2,

b=echo(12288,deNaN(B(sinh(sin(ts/2*PI/16*n(sqi[(t>>12)%4])*n(sq[(t>>15)%4]))*4)+48)),.5,.55),

c=echo(12288,pf(B((cosh(sin(ts/2*PI/32*n(sqi[(t>>12)%4])*n(sq[(t>>15)%4]))*4)+32)),.3,.9,.2),.3,.7)*3-(1/2),

d=hpr(B(((sin(ts/2*PI/32*n(16)*8))%256*(1-t%2048/3000)*"0001"[(t>>14)%4])*64),.9,.9)/128-1,

e=echo(16384*(3/8),pf(B(((tanh(tan(ts*PI/256*1*n((t&131072?sqi:[0,4,7,11,14,11,7,4])[t>>12&(t&131072?3:7)])*n(sq[(t>>15)%4]))*1)+128)))*64,.2*abs(sin(t/131072*PI))*(1-t/4096%1)+.1,.9,.7)/5+(1/3),.3,.4)*2,

deNaN(((((a+b+c)+d))+((e+(B(ts/4*1*n(sq[(t>>15)%4]))%256/4))+((B((2e6/(t&8191))*"1000010010010100"[t>>13&15])%256/4))+2)))

t?0:Z=[],X=0,lp=(t,v)=>(Y=X++,Z[Y]??=0,Z[Y]+=(t-Z[Y])*v),a=[[0,3,7],[3,7,12],[9,12,5],[12,14,7]],vs=-t>>14&15?16384:8192,lp(a[t>>16&3].map(s=>((v=t=>t*1.1*2**(s/12)/128%2-1)(t)+v(t*2.01)+v(t*1.52)+v(t*1.01))/4).reduce((t,v)=>t+v)/2,(1-t/8192%1)/2+.1)*min(t%vs/8192,1)**4+tanh(lp(sin(sqrt(t*1.1/8*2**([0,3,5,7][t>>16&3]/12)%128)**.2*50)*2,.01)*2)*(t>>13&1)/2*(vs!=8192)+tanh(sin((t%vs/vs)**.3*130)*2)*.1**(t%vs/16384)

t||(
Karplus = function() {
	this.mem;
	this.pc = 0;
	this.len;
	this.bright = .6;
	this.pluck = function (len) {
		this.len = len;
		this.mem = Array.from({length: len}, x=>random()*2-1);
		this.pc = 0;
	};
	this.process = function (bright) {
		let location = this.pc % this.len;
		this.mem[location] = this.mem[location]*bright + this.mem[(location-1+this.len)%this.len]*(1-bright)||0;
		this.pc++;
		return this.mem[location];
	};
	return this;
},
chord=[0,3,5,7,10,12,14,15],
bright=[.5,.7,.5,.85,.7,.9,.5,.8,],
k = Array(chord.length).fill().map(x=>new Karplus()),

(()=>{
	for (i=0;i<chord.length;i++) k[i].pluck()
})()
),


(()=>{
for (i=0;i<chord.length;i++) {
	if ((t%65536)==(i*8192)) {
		k[i].pluck(220*2**(-chord[i]/12)|0)
	}
}
})(),

k.map((x,i)=>x.process(bright[i])).reduce((a,b)=>a+b)

(t>>2)*(t&(t&32768?16:24)|t>>(t>>8&28))|t*((t>>10|t%16*t>>5)&8*t>>10&18)|t>>2

((t*(t>>17&1?t>>16&1?24:21:16)/65.536)*(t&4096?t&8192?2:3:4))

((t>>6^t>>13)*4^t)+t>>(t>>11)%8|t%32^t>>11<<(t>>6^t>>13)-(t*8/25)|t>>11<<6

t*(t>>8|t>>7&t>>4)+t

t*(t>>8|t>>7&t>>4)+t&(t<131072?255:t>>4)

(((sin((t*
[[[1,2,3,5][t>>12&3],
[4,6,3,2][t>>12&3]][t>>16&1],
[[4,5,4,3][t>>12&3],
[6,8,5,4][t>>12&3]][t>>16&1]][t>>18&1]/12)&255)*(1-t>>5&127)|t>>6&63)&63))
+
(48&(t*(t>>10&4|t>>15&3|t>>12&3|t>>16&6)+t>>2))
+
((((5E4/(t&16383)&162))*(t>>14&1))%256*(1-t%2048/2048))
+
(((((t*t*t>>t*-t^t*t)&192/2))*((t>>13&-t>>11&-t>>12)&1))%256*(1-t%2048/2048))
+
(((3E5/(t&16383)&64)*(-t>>14&1))%256*(1-t%2048/2048))
+
(((t&8192?(t/30<<(t>>8&7))*((t%16384)<10240):(-t/30*255>>(t>>8&7))*((t%8192)>6144))&53)%256*(1-t%2048/2048))
+
(((a=(t*((t>>11&t>>15^t>>12)&3)))%28+a%43+a%32|t>>6&31)*(1-t%2048/2048))/2
+
(((4e4/(t&4095)&54)*(t>>12&1))*(1-t%2048/2048))

((t/8*((((t/3328)%16)<1)*(5/2)+((((t/3328)%16)>1)*(((t/3328)%16)<2))*(9/2)+((((t/3328)%16)>2)*(((t/3328)%16)<4))*(3/2)+((((t/3328)%16)>4)*(((t/3328)%16)<6))*(6/2)+((((t/3328)%16)>8)*(((t/3328)%16)<9))*9+((((t/3328)%16)>9)*(((t/3328)%16)<10))*10+((((t/3328)%16)>10)*(((t/3328)%16)<12))*12+((((t/3328)%32)*2)>24)*((((t/3328)%32)*2)<25)*15+((((t/3328)%32)*2)>25)*((((t/3328)%32)*2)<26)*14+((((t/3328)%32)*2)>26)*((((t/3328)%32)*2)<27)*13+((((t/3328)%32)*2)>27)*((((t/3328)%32)*2)<28)*12+((((t/3328)%16)>14)*(((t/3328)%16)<16))*14)+((((t/3328)%16)>16)*(((t/3328)%16)<17))*15)&72)+(((t&255)/(t/(t/8/3328&1?t/16/3328&1?1:2:4)/3328%1))&92)+((((t/2/3328&1)?(t*t*t>>3*t):50000/(t/2%3328))&95)*(1-t/2/3328%1))

b=(a,b)=>(cos(cbrt(a%b)/5))*128,min(255,max(0,(b(((t>2097152)*t*(5+(t>>12&3^1*((t>>13&7^t>>16&15)*3)))/8)/2,98)+b(((t>2097152)*t*(5+(t>>12&3^1*((t>>13&7^t>>16&15)*3)))/8)/2,128)+b((t>2097152)*t*(5+(t>>12&3^1*((t>>13&7^t>>16&15)*3)))/8,134)+b(((t>2097152)*t*(5+(t>>12&3^1*((t>>13&7^t>>16&15)*3)))/8)/3,118)&255)+((p=(sin(sqrt((t&16383||1)*4)))*cos((t/16384%1)*(3/2))*128)*sin(p>0)+128*(t<2097152))+(((t>>12|t>>13^t>>14|t>>15&t>>16)&1)*sin(sqrt((t%4096||1)*10))*cos(sqrt(t/4096%1)*1.5)*64*(t>524288))+((((sin(t**3)+sin(t**5)+sin(t**6))/sin(t/4096%1||1))*3)*(t>1048576))+((((9e4/(t%16384)*(sin(t**3)+sin(t**5)+sin(t**6))))*(t>>14&1))/4*(t>262144))+((((b((t>327680*2.8)*t*(1+(t>>13&7^(t>>12&t>>13&5|t>>15&7))),142)+b((t>327680*2.8)*t*(1+(t>>13&7^(t>>12&t>>13&5|t>>15&7))),182)+b((t>327680*2.8)*t*(1+(t>>13&7^(t>>12&t>>13&5|t>>15&7))),160))/2)-(t<327680*2.8?192:128)))+((b((t>1048576*1.5)*t/5*(1+(((t>>13^t>>15|t>>14)^t>>16)&7)),98)+b((t>1048576*1.5)*t/5*(1+(((t>>13^t>>15|t>>14)^t>>16)&7)),72)-(t>1048576*1.5?192:256)))))

(((PI*cos((p=(t+(t>>10&8|t>>15&4|t>>19&6)*t/(2+(t>>16&7)))/20)&p>>9&31))/3+(PI*sin(exp(p&p>>8&31)))+(PI*sin(p&(p/128+p&p>>10&31)))/(3/2))*15)+sin(t/8e3)*32

susi

N=4096,n=4**9,R=random()-.5,p=.27*t,typeof d=="undefined"?d=Array(512).fill(0):0,DR=(n,t=12,a=1)=>{P=n[p/2**t%n.length|0];return"K"==P?atan(2*tanh(sin(600*(f=a*p%N)**.024+8*(d[0]+=(R*1e-23**(p/N%1)**.8-d[0])/7)))*(h=1-a*p/N%1)**3+sin(100*f**.1)*min(1,5*h)*h**.2)/tanh(1)*.4:"C"==P?4*(d[1]+=d[2]+=(R-d[1]-2*d[2])/4)*1e-4**(a*p>>8&15?a*p/N%1:a*p/128%1)**.9:"H"==P?d[3]+=d[4]+=(R*1e-7**(a*p/N%1)-d[3]-d[4])/.89:0},k=t*2**([7,4,7-(l=p>>12&5),l][t&3]/12-2),tanh(p>n-4**7?p>n?1:~p>>10+(p>>13&1)&1:1)*(atan2(tanh(.6**(p*(1+(p>n))/N%1)*(d[5]+=(48*k%8>(~p>>4+(p<4**9)&127)+.3?6:~24*((k/6^2*k/3)%32&k/64%1*32)-d[5])/4)/56+3)+(p>n&&6*sinh(cos(PI*t*2**(-'0375'[p>>16&3]/12-9))*(74803>>(p>>11&15)&1))),PI)/2+(h=p>n-4**7?p>n?1:0:1)*DR(p>n?"K C  KC ":"K C  KCKK CK K  ",12)+h*(p>n/2&&DR("H",0,2))/2)

r=(x,y=12288,z=0.5)=>(t?0:a=Array(y).fill(0),b=x%256+a.shift(),a.push(b*z),b),
Arpeg=r(5/4*[1,9/8,3/2,2,9/4,3,4,9/2,,,,,,,,,6,9/2,4,3,9/4,2,3/2,9/8][t>>10&23]*t&128,12288)/8,R=(a,b)=>Array(a).fill(b),
t?0:F=[1,1,1,...R(3,64/63),28/27,28/27,...R(4,16/15),...R(4,12/11),
9/8,9/8,9/8,8/7,8/7,8/7,7/6,7/6,...R(4,6/5),...R(4,11/9),
5/4,5/4,5/4,9/7,9/7,9/7,21/16,21/16,...R(4,4/3),...R(4,11/8),
...R(8,7/5),...R(8,3/2)],
Riser=(F[t>>13]*t*5/4&64)+(t*5/4&64),
lp=(inp,w)=>{t?0:d=0;if(w==0)return inp;out=inp+d;d=out/(1+1/w);return d/w},
r=random,
m=(t>>12&31)==16?(t>>4&255)/64:0,
Drum=((lp((r()-.5),m)*((parseInt ("8ea88e88ea8e88e8f088e8ee8cef8caa"[t>>12&31],16)>>(3&-t>>10))&1)+asin(sin(sqrt(t&16383)))/PI)+1)*64,
t>>13>=64?0:Riser/2+Arpeg+Drum

pt=(1.1-t/2**16%1)**(1/16),((random()*(-t>>8&255)/256)-.5)/2+abs(sin(t*PI/51.2*2**([9,16,23,9,16,23,9,16,23,9,16,23,4,4,4,4][t>>12]/12)*pt/2))

f=a=>sin(2**(a/12)*t/14.5),R=(x,y=12288,z=0.5)=>(t?0:g=Array(y).fill(0),p=x%256+g.shift(),g.push(p*z),p),R(f(parseInt('ejho'[t>>12&31],36))||0)/3