Arduino Buzzer Music

int buzz = 7; int button = 5; void setup() { pinMode(buzz,OUTPUT); pinMode(button,INPUT_PULLUP); } void loop() { if(digitalRead(button)==LOW){ unsigned char i; double mi4 = 329.628; double do4 = 261.626; double so4 = 391.995; double so3 = 195.998; double ra3 = 220; double si3 = 246.942; double ra3s = 233.082; double mi3 = 164.814; double ra4 = 440; double fa4 = 349.228; double re4 = 293.665; double re3s = 155.563; double do3 = 130.813; double re3 = 146.832; double ra4s = 466.164; double do4s = 277.183; double do5s = 554.365; double fa3 = 174.614; double do5 = 523.251; double re5 = 587.330; double fa4s =369.994; double si4=493.883; double fa5=698.456; double mi5=659.255; double re4s=311.127; double rest = 1.277; double rest2 = 0.638; double rest4 = 0.319; double rest8 = 0.160; double rest16 = 0.080; cal(re4,rest8); cal(re4,rest8); cal(ra4,rest4); cal(re4,rest8); cal(re4,rest8); cal(ra4s,rest4); cal(re4,rest8); cal(re4,rest8); cal(ra4,rest4); cal(re4,rest8); cal(re4,rest8); cal(do4s,rest4); cal(re4,rest8); cal(re4,rest8); cal(ra4,rest4); cal(re4,rest8); cal(re4,rest8); cal(do5s,rest4); cal(ra4,rest2); cal(ra3,rest2); cal(fa4,rest2); cal(fa3,rest2); cal(re4,rest8); cal(re4,rest8); cal(ra4,rest4); cal(re4,rest8); cal(re4,rest8); cal(ra4s,rest4); cal(re4,rest8); cal(re4,rest8); cal(ra4,rest4); cal(re4,rest8); cal(re4,rest8); cal(do5s,rest4); cal(re5,rest); rest8 = 0.15; cal(re5,rest8); delay(rest8*1000+rest2*1000); rest = 1.805; rest2 = 0.902; rest4 = 0.451; rest8 = 0.226; rest16 = 0.113; cal(so3,rest16); cal(si3,rest16); cal(re4,rest16); cal(fa4s,rest16); cal(so4,rest8); delay(rest8*1000); cal(so4,rest8); delay(rest8*1000); delay(rest8*1000); cal(so4,rest16); cal(so4,rest16); cal(so4,rest8); delay(rest8*1000); cal(so4,rest8); delay(rest8*1000); cal(so4,rest8); delay(rest8*1000); cal(so4,0.150); cal(so4,0.150); cal(so4,0.150); cal(so4,0.150); cal(so4,0.150); cal(so4,0.150); cal(so4,rest4); cal(si4,rest8); cal(re5,rest2); cal(do4,rest4); cal(fa4,rest8); cal(fa5,rest4); cal(do4,rest4); cal(mi5,rest16); cal(re5,rest16); cal(re5,rest2); cal(fa4,rest4); cal(mi4,rest16); cal(re4s,rest16); cal((re4s+si3)/2,rest2); } } int cal(double frec,double length){ double T = 1/frec/2*1000000; double loopnum = length*1000000/T/2; int loop = loopnum; for(int i=0;i<loop;i++){ digitalWrite(buzz,HIGH); delayMicroseconds(T); digitalWrite(buzz,LOW); delayMicroseconds(T); } }