[a=i=>(t*(t>>(t>>i)&15)+2)%256/8,
a(7)+
a(8)+
a(9)+
a(10)+
a(11)+
a(12)+
a(13)+
a(14)]

(t*((t>>11&5)+((t>>15&1)*16)))*2

P='push',F='fill',A=Array,L='length',t>.5||(count=9e4+round(random()*2e4),TN=512+round(random()*3072),a=A(l=abs(count-256)+1)[F](0),b=A(l*2)[F](0),c=A(l*3)[F](0),d=A(l*4)[F](0),e=A(l*5)[F](0),f=A(l*6)[F](0),g=A(l*7)[F](0)),t*=3,t+=(TN-512)*1024,x=sin((X=t*PI/TN*pow(2,[1,3,5,8,10,13,17][int(t/count)%7]/12))+sin(X+sin(X))/2)*(t/count*2%1-1)*(t/count*64&127?1:t/count*64%1)*(t%(count*2)<count/2),x+=a[t%a[L]],a[P](x/1.5),x+=b[t%b[L]],b[P](x/4),x+=c[t%c[L]],c[P](x/4),x+=d[t%d[L]],d[P](x/4),x+=e[t%e[L]],e[P](x/4),x+=f[t%f[L]],f[P](x/4),x+=g[t%g[L]],g[P](x/4),x/3

P='push',F='fill',A=Array,L='length',t>.5||(a=A(l=131072)[F](0),b=A(l*2)[F](0),c=A(l*3)[F](0),d=A(l*4)[F](0),e=A(l*5)[F](0),f=A(l*6)[F](0),g=A(l*7)[F](0)),t*=9,x=sin(t*PI/1920)*(t/l/32%1-1)**8+a[t%a[L]]+b[t%b[L]]+c[t%c[L]]+d[t%d[L]]+e[t%e[L]]+f[t%f[L]]+g[t%g[L]],a[P](x/2),b[P](x/2),c[P](x/2),d[P](x/2),e[P](x/2),f[P](x/2),x/3

t/=1.8,f=lr=>(tn=t=>(t*lr*.995*PI/8&255)/768+(t*lr*PI/8&255)/768+(t*lr*1.005*PI/8&255)/768,max(-1.5,min(1.5,2*(((sin(t*8.1*lr|t*20.5*lr)+cos(t/14.5*lr|t/30*lr)))/4)*pow(t/65536%1-1,8)+sin(sin(t*lr*8.5|t*lr*9.2)+cos(t*lr/9.2|t*lr/23))*pow(1-((((t+32768/'11111112'[t>>16&7])/(65536/'11111112'[t>>16&7])%1)+1)%1),14)/1.5+sin(sin(t*lr*12|t*lr*9.3)+cos(t*lr/9.2|t*lr/23))*pow(1-((((t+32768/'11111112'[t>>15&7])/(65536/'11111112'[t>>15&7])%1)+1)%1),14)/1.5+sin(sin(t*lr*11|t*lr*9.3)+cos(t*lr/9.9|t/19*lr))*pow(1-((((t+32768/'1111111111111112'[t>>14&15])/(16384/'1111111111111112'[t>>14&15])%1)+1)%1),14)+sin(sin(t*lr*11|t*lr*9.3)+cos(t*lr/9.9|t/19*lr))*pow(-((((t+32768/'1111111111111112'[t>>14&15])/(131072/'1111111111111112'[t>>14&15])%1)+1)%1),14)/1.5+sin(sin(t*lr*15.5&t*lr*120)+cos(t*lr/10.2|t*lr/24))*pow(1-(t/8192%1),15)/2+sin(pow(1-(t/32768*'1111111111111112'[t>>15&15]%1),15/'1111111111111112'[t>>15&15])*72.25/'1111111111111112'[t>>15&15])*1.5+(((sin(t*lr*7.1|t*lr*28.2)+cos(t*lr/14.5|t*lr/10)))*(t/8192%1-1)/2)/4+((random()-random())*'0000000000000001'[t>>15&15]*(t/8192%1-2)*5+(sin(sin(t*lr*8|t*lr*15.5)+cos(t*lr/10.2|t*lr/24))/(t%65536/6144%2)/2)+(-sin(sin(t*lr*3.3|t*lr*10)+cos(t*lr/10.2|t*lr/24))/(t%65536/1536%8)))/10))*1.85+((tn(t*lr*2**([10,10,9,12][t>>18&3]/12))+tn(t*lr*2**([14,14,12,17][t>>18&3]/12))+tn(t*lr*2**([17,19,17,[22,21][t>>17&1],17,19,17,[22,24][t>>17&1],17,19,17,[22,21][t>>17&1],17,19,17,[22,[24,[26,21][t>>15&1]][t>>16&1]][t>>17&1]][t>>18&15]/12)))-1.5)*2)/4,[f(.995),f(1.005)]

_kick    ='00111111111111110011111111111111000000000000000000000000'[ts>>18],
_snare   ='00001111111111110000000011111111000000000000000000000000'[ts>>18],
_hihat   ='00000000111111110011111111111111111111110000000000000000'[ts>>18],
_swells  ='11110000000000000011111111111111111100001111000000000000'[ts>>18],
_distkick='00000000000000000011111111111122000000000000000000000000'[ts>>18],
$distkick='00000000000000000011111111112235000000000000000000000000'[ts>>18],
_riser   ='00000000000011110000222200004444000000000000000000000000'[ts>>18],
_lead    ='11111111111111111111111111111111111111110000000010000000'[ts>>18],
_lead2   ='00000000000000000011111111111111111111111111111110000000'[ts>>18],
_bass    ='11111111111111110011111111111111111111111111111110000000'[ts>>18],
_chords  ='00001111111111110011111111111111111111110000000010000000'[ts>>18],

	/* Song Progression (8 beats per iteration) */
// Insert song progression strings for instruments here.
_kick    ='00111111111111110011111111111111000000000000000000000000'[ts>>18],
_snare   ='00001111111111110000000011111111000000000000000000000000'[ts>>18],
_hihat   ='00000000111111110011111111111111111111110000000000000000'[ts>>18],
_swells  ='11110000000000000011111111111111111100001111000000000000'[ts>>18],
_distkick='00000000000000000011111111111122000000000000000000000000'[ts>>18],
$distkick='00000000000000000011111111112235000000000000000000000000'[ts>>18],
_riser   ='00000000000011110000222200004444000000000000000000000000'[ts>>18],
_lead    ='11111111111111111111111111111111111111110000000010000000'[ts>>18],
_lead2   ='00000000000000000011111111111111111111111111111110000000'[ts>>18],
_bass    ='11111111111111110011111111111111111111111111111110000000'[ts>>18],
_chords  ='00001111111111110011111111111111111111110000000010000000'[ts>>18],

t||(a1=[0],a2=[0],f='fill',b=(A=Array)(l=12288)[f](0),c=A(l)[f](0),d=A(l)[f](0),e=A(l)[f](0)),channels=['1010101101101010101010110110111110101011011010101010101101111111'[t/4096&63],'1111110011001111001111111100110011111111001111110011111111111111'[t/4096&63],'0011110011001100111100111111001100110001111011011111001111111111'[t/4096&63]],x=(lr,arr1,arr2,arr3)=>(bass=((t/3*lr*2**(parseInt('4720'[t>>17&3],36)/12)&128)/128-.5)*(t>>13&1)+arr1[t%1],arr1[t%1]=bass/1.05,bass/=8,X=t/131072,triLead=(atan(X%1*tan(X*PI+asin(sin((t+sin(t*PI/2048*lr)*8)*PI/96*lr*2**(parseInt(['479BEB97','79BEJEB9','2469E964','0457C754'][t>>17&3][t>>12&'5657'[t>>15&3]],36)/12)))))/2)*2+arr2[t%l],arr2[t%l]=triLead/2,drums=(isNaN(k=sin((400*lr)/(t%4096)**.1)*3*(t/4096%1-1)*channels[0])?0:k)+sin(t*lr|t/5.88*lr)*2*(t/8192%1-1)*channels[1]+sin(t/3.7*lr|t/5.5*lr)*2*(t/8192%1-1)*channels[2]+arr3[t%l],arr3[t%l]=drums/2,drums/=2,(drums+bass+triLead)/4),[x(.995,a1,b,d),x(1.005,a2,c,e)]

// midi ref: onlinesequencer.net/4920020

tick=12E3,
length=576E3,
hold=36E3,
decay=16384,
t%=length,
i=f=>isNaN(f)?0:f,

C = 261.63,
Db = 277.18,
D = 293.66,
Eb = 311.13,
E = 329.63,
F = 349.23,
Gb = 369.99,
G = 392.00,
Ab = 415.30,
A = 440.00,
Bb = 466.16,
B = 493.88,

A1=[

[0,1,Gb,5],
[1,2,Db,5],
[2,3,Gb,5],
[3,4,Db,5],
[4,5,Gb,5],
[5,6,Db,5],
[6,7,Gb,5],
[7,8,Db,5],
[8,9,Gb,5],
[9,10,Db,5],
[10,11,Gb,5],
[11,12,Db,5],

[12,13,B,4],
[13,14,A,4],
[14,16,Db,5],
[16,17,A,4],
[17,18,B,4],
[18,19,E,5],
[19,20,Eb,5],
[20,21,E,5],
[21,22,Gb,5],
[22,23,Eb,5],
[23,24,B,4],

[24,25,Gb,5],
[25,26,B,4],
[26,27,Gb,5],
[27,28,B,4],
[28,29,Gb,5],
[29,30,B,4],
[30,31,Gb,5],
[31,32,Bb,4],
[32,33,Gb,5],
[33,34,Bb,4],
[34,36,G,5],

[36,37,Gb,5],
[37,38,D,5],
[38,39,Gb,5],
[39,40,D,5],
[40,41,E,5],
[41,42,Gb,5],
[42,44,E,5],
[44,46,D,5],
[46,48,Db,5],

],

A2=[

[0,1,D,4],
[1,2,Gb,4],
[2,3,A,4],
[3,4,Gb,4],
[4,5,A,4],
[5,6,Gb,4],
[6,7,D,4],
[7,8,Gb,4],
[8,9,A,4],
[9,10,Gb,4],
[10,11,A,4],
[11,12,Gb,4],

[12,13,B,3],
[13,14,Eb,4],
[14,15,Gb,4],
[15,16,Eb,4],
[16,17,Gb,4],
[17,18,Eb,4],
[18,19,B,3],
[19,20,Eb,4],
[20,21,Gb,4],
[21,22,Eb,4],
[22,23,Gb,4],
[23,24,Eb,4],

[24,25,G,3],
[25,26,B,3],
[26,27,D,4],
[27,28,B,3],
[28,29,D,4],
[29,30,B,3],
[30,31,G,3],
[31,32,Bb,3],
[32,33,D,4],
[33,34,Bb,3],
[34,35,D,4],
[35,36,Bb,3],

[36,37,D,4],
[37,38,Gb,4],
[38,39,A,4],
[39,40,Gb,4],
[40,41,A,4],
[41,42,Gb,4],
[42,43,Db,4],
[43,44,E,4],
[44,45,A,4],
[45,46,E,4],
[46,47,A,4],
[47,48,E,4],

],

A3=[

[0,3,D,3],
[3,6,D,2],
[6,10,A,2],
[10,12,Db,3],
[12,18,B,2],
[18,24,Gb,2],
[24,26,G,2],
[26,32,D,3],
[32,36,Bb,2],
[36,44,A,2],
[44,46,G,2],
[46,48,Db,3],
],

piano = array => i(array.reduce((_, v) => _ + (t > v[0] * tick) * (t < v[1] * (tick + hold)) * (sin(sin(a = t / 7680 * v[2] / 4 * (2 ** (v[3] - 1))) + sin(a/4) * 2 + tan(sin(a/4)) * PI + sin(a/2)) / ((t - (v[0] * tick)) / decay + .1)), 0) / 32),

triangle = array => i(array.reduce((_, v) => _ + (t > v[0] * tick) * (t < v[1] * tick) * (asin(sin(t / 7680 * v[2] / 8 * (2 ** (v[3] - 1))))), 0) / 4),

piano(A1)+piano(A2)+triangle(A3)

((T=t/(div=1.25),t?(S=(-(2**((0xA7305730>>(T>>14&28)&15)/12)*t/3&128||0)/128)*(T>>13&1)+abs(atan(sin(a+=b+=(2**(([0,3,7,12,,19,,7][T>>11+(T>>13&3^T>>14&1)&7]+12*(T>>18&1))/12-5.75)-b)/300))/3)*4+sin(t/'2325'[T>>15&3]|t/9.4)*(T>>14&1)*(T/16384%1-1)**9*2+sin(9*cbrt(T%32768))*(T/32768%1-1)+A[t%l],A[t%l]=S/2+sin(8e4/(T%65536))/2-(random()-random())*2*(T/12288%1-1)**9,S)+(H=(sin(t|t/5.4))*(T/4096%1-1)**6+B[t%l2],B[t%l2]=H/1.6,H)-.25:(a=b=0,A=Array(l=round(12288*div)).fill(0),B=Array(l2=(64*div)).fill(0)))/2)/1.5-.25

t||(w=p=>(-cos(p/128*PI)+1)*128-.5,fx=[],dMax=1e6,L=(a,c)=>(lp_fxii=fxi++,fx[lp_fxii]??=0,fx[lp_fxii]+=(a-fx[lp_fxii])*c),hpf=(a,c)=>a-L(a,c),bpf=(a,h,l)=>hpf(L(a,l),h),D=(a,H,dw,fbfn=x=>x)=>{D_fxii=fxi++;fx[D_fxii]??=Array(dMax).fill(0);D_wi=dt%dMax;D_feed=a;D_out=0;for(let h of H){D_ri=(dMax+dt-round(h.t))%dMax;D_feed+=fx[D_fxii][D_ri]*h.fb;D_out+=fx[D_fxii][D_ri]*h.m;}fx[D_fxii][D_wi]=fbfn(D_feed);return a*(1-dw)+D_out*dw;}),fxi=0,dt=t,rvrbH=[[{t:1e3+w(t/210),m:.5,fb:.15},{t:1e4+w(t/250),m:.4,fb:.35},{t:17e3+w(t/300),m:.3,fb:.45},{t:37e3+w(t/380),m:.2,fb:.65}],[{t:1100+w(t/230),m:.5,fb:.15},{t:13e3+w(t/270),m:.4,fb:.35},{t:14e3+w(t/280),m:.3,fb:.45},{t:40e3+w(t/400),m:.2,fb:.65}]],t*=1.1,mn=f=>min(max(f,-1),1),lr=lr=>(chr=f=>(tan(sin((a=t*PI/128*lr*2**((f-'0075'[t>>16&3])/12))+tan(sin(a)*1.34)/PI*(sin(t*PI/1048576)**4*9)))*1.5)*2,(D((chr(0)+chr(4)+chr(7)+chr(11))/((t%65536/24576%1)+.1)/32,rvrbH[(lr<1)*1],.5,x=>tanh(bpf(x,.01,.2)/50)*50)*1.5+sin(t*lr*PI/512*2**((11-'0075'[t>>16&3])/12))/1.5)*(t/4096&7?1:t/4096%1)**8+mn(L(sin(PI*2*cbrt(t%8192)),.01)*3*(t/8192&3?0:t/8192%1-1)+((random()-random()+sin(PI*2*cbrt(t%8192))*2)*(t/8192&3?0:t/8192%1-1))*(t/32768&1))+((random()-random())*(t/2048&3?0:t/2048%1-1))*((t/8192&3)>0)/1.5)/4,[lr(.995),lr(1.005)]

(((((t%(436*0.8)&255)-(t%(436*0.81)&255)-(t%(436*0.79)&255))/3*(t/64%256)/436+((t%(291*0.8)&255)-(t%(291*0.81)&255)-(t%(291*0.79)&255))/3*(t/64%256)/291+((t%(183*0.8)&255)-(t%(183*0.81)&255)-(t%(183*0.79)&255))/3*(t/64%256)/183+((t%(218*0.8)&255)-(t%(218*0.81)&255)-(t%(218*0.79)&255))/3*(t/64%256)/218)/4+(t%(436*(t>>18&1?t>>17&1?0.53:0.45:t>>17&1?1:0.8))&255)/5*(t/16384%1))+(((((t+1)%(436*0.8)&255)-((t+1)%(436*0.81)&255)-((t+1)%(436*0.79)&255))/3*((t+1)/64%256)/436+(((t+1)%(291*0.8)&255)-((t+1)%(291*0.81)&255)-((t+1)%(291*0.79)&255))/3*((t+1)/64%256)/291+(((t+1)%(183*0.8)&255)-((t+1)%(183*0.81)&255)-((t+1)%(183*0.79)&255))/3*((t+1)/64%256)/183+(((t+1)%(218*0.8)&255)-((t+1)%(218*0.81)&255)-((t+1)%(218*0.79)&255))/3*((t+1)/64%256)/218)/4+((t+1)%(436*((t+1)>>18&1?(t+1)>>17&1?0.53:0.45:(t+1)>>17&1?1:0.8))&255)/5*((t+1)/16384%1))+(((((t+2)%(436*0.8)&255)-((t+2)%(436*0.81)&255)-((t+2)%(436*0.79)&255))/3*((t+2)/64%256)/436+(((t+2)%(291*0.8)&255)-((t+2)%(291*0.81)&255)-((t+2)%(291*0.79)&255))/3*((t+2)/64%256)/291+(((t+2)%(183*0.8)&255)-((t+2)%(183*0.81)&255)-((t+2)%(183*0.79)&255))/3*((t+2)/64%256)/183+(((t+2)%(218*0.8)&255)-((t+2)%(218*0.81)&255)-((t+2)%(218*0.79)&255))/3*((t+2)/64%256)/218)/4+((t+2)%(436*((t+2)>>18&1?(t+2)>>17&1?0.53:0.45:(t+2)>>17&1?1:0.8))&255)/5*((t+2)/16384%1)))/4-128

eval(unescape(escape`瑨楳⹡㼿㴰ⱡ⬫ⱡ㰲㽁㵂㵃㵄㵅㵆㵇㵈㴰㨨瀽弽㹴慮栨慴慮⠨摩瘽㈵㘫獩渨愯㄰㈴⤪㠬砽礽㹹⽤楶ⱘㄽ䄫㵂⬽⡸⠲⨪⡛㐬㜬〬㉝孡㸾ㄷ☳崯ㄲ⤩ⵂ⤯㈰㐸ⱘ㈽䌫㵄⬽⡸⠲⨪⡛〬㐬ⴳⰭㅝ孡㸾ㄷ☳崯ㄲ⤩ⵄ⤯㈰㐸ⱘ㌽䔫㵆⬽⡸⠲⨪⡛ⴳⰰⰭ㜬ⴵ嵛愾㸱㜦㍝⼱㈩⤭䘩⼲〴㠬場㵇⬽䠫㴨砨㈪⨨嬭㌬〬ⴷⰭ㕝孡㸾ㄷ☳崯ㄲⴲ⤩ⵈ⤯㄰㈴Ɫ猱㵘ㄥㄭ⸵Ɫ猲㵘㈥ㄭ⸵Ɫ猳㵘㌥ㄭ⸵Ɫ猴㵘㐥ㄭ⸵Ⱘ⡢猱⭢猲⭢猳⭢猴⤪⡡⼸ㄹ㈦㌿ㄺ愯㠱㤲┱⤪⨱㘫獩渨偉⨱㘪ㅥⴱ㌪⨨愯㌲㜶㠥ㄩ⤪㈫⡳楮⡡⼷籡⼱⤫獩渨愯㥼愯ㄵ⤩⨨愯㌲㜶㠥ㄭㄩ⨪㜪⡡⼳㈷㘸☱⤩⼲⬨⡲慮摯洨⤭牡湤潭⠩⤪⡡⼱㘳㠴┱ⴱ⤪⨳⨨愯㠱㤲☳㼱㩡⼸ㄹ㈥ㄩ⨪㈩⤪㈩⤬孰⠩Ɒ⠩崩`.replace(/u(..)/g,"$1%")))

asin(cbrt(sin(imul(t,t>>13&42)/384)))/2*(t%65536/24576%1-1)**2*(t/8192&3?1:t/8192%1)**2+sin(pow(.001,t/32768%1)*PI*64)/2

t||(Rvb=Array(l=24832).fill(0)),t/=y=16,X=Rvb[t*y%l],A=sin(sin(sin(Y=t*(0xca98ca98>>(t>>8&30)&15)*PI/[32,48,64,24][t>>15&3])/PI+Y)*(sin(t*PI/8192)+4))*min(.1,abs(sin(t*PI/2**9)))*8+sin(PI*64*1e-24**(t/16384%2))+random()*sin(t/5555)/4+X,Rvb[t*y%l]=((A-Rvb[l/2|0]/2+Rvb[l/4|0]/3)/2),X/2

[0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18].reduce((x,y)=>x+X(y),0)

(()=>{x=0;i=19;while(i--)x+=X(i);return x})()

lr=lr=>(r=t1.35,d=min(1,max(-1,sin(8cbrt(r%32768))3(r/32768%1-1)*5+(random()-random())(r/8192%1-1)*2))2,n=r=>(sign(sin(tlrPI/1282(parseInt('1 4 B RN I G F8BF G 8 B6 8 4 643'[31&(11&r>>13)+(r>>15)],36)/12)))||0)/3(r/8192%1-2)(r>0),n=n(r)+n(r-(D=24576))/3+n(r-D2)/4+n(r-D3)/5+n(r-D4)/6,b=sign(sin(tlrPI/2562(1/12)))(r/8192%1-1.5)/4,(d+(n+b)(r/8192&3?1:r/8192%1)*8)/4),[lr(.995),lr(1.005)]

lr=lr=>(r=t*1.35,d=min(1,max(-1,sin(8*cbrt(r%32768))*3*(r/32768%1-1)*5+(random()-random())*(r/8192%1-1)*2))*2,n=r=>(sign(sin(t*lr*PI/128*2**(parseInt('1 4 B RN I G F8BF G 8 B6 8 4 643'[31&(11&r>>13)+(r>>15)],36)/12)))||0)/3*(r/8192%1-2)*(r>0),n=n(r)+n(r-(D=24576))/3+n(r-D*2)/4+n(r-D*3)/5+n(r-D*4)/6,b=sign(sin(t*lr*PI/256*2**(1/12)))*(r/8192%1-1.5)/4,(d+(n+b)*(r/8192&3?1:r/8192%1)*8)/4),[lr(.995),lr(1.005)]

this.a??=0,a++,a<2?A=B=C=D=E=F=G=H=0:(p=_=>tanh(atan((div=256+sin(a/1024)*8,x=y=>y/div,X1=A+=B+=(x(2**([4,7,0,2][a>>17&3]/12))-B)/2048,X2=C+=D+=(x(2**([0,4,-3,-1][a>>17&3]/12))-D)/2048,X3=E+=F+=(x(2**([-3,0,-7,-5][a>>17&3]/12))-F)/2048,X4=G+=H+=(x(2**([-3,0,-7,-5][a>>17&3]/12-2))-H)/1024,bs1=X1%1-.5,bs2=X2%1-.5,bs3=X3%1-.5,bs4=X4%1-.5,((bs1+bs2+bs3+bs4)*(a/8192&3?1:a/8192%1)**16+sin(PI*16*1e-13**(a/32768%1))*2+(sin(a/7|a/1)+sin(a/9|a/15))*(a/32768%1-1)**7*(a/32768&1))/2+((random()-random())*(a/16384%1-1)**3*(a/8192&3?1:a/8192%1)**2))*2)),[p(),p()])