Need a little help with my music vu meter

//Music led
int value = 0; // variable to keep the actual value
int ledPin = {0,1,2,3,4,5,6,7,8,9,10,11,12,13}; // light connected to digital pin 9
int val;
int n=0;
int time;
int NewVal;
int NewTime;
#define sensorRight 0
#define sensorLeft 1
int sensor

void setup()
{
int oldMusicLeft=512;
int oldMusicRight=512;
for(int k=0;k<=13;k+=1)
{
pinMode(ledPin[k], OUTPUT);
}
}

int checkVal(sensor)
{
val=analogRead(sensor);
if((450<=val)&&(val<=550))
{
NewVal=0;
return NewVal;
}
if(val<=620)
{
NewVal=map(val,50,620,0,7);
return NewVal;
}
if(val>=516)
{
NewVal=map(val,620,1050,0,7);
return NewVal;
}
}

//int greaterValue(oldMusic, newMusic)
//{
// if(newMusic<=oldMusic) //if the old value is greater
// {
// for(n=oldMusic;n>=newMusic;n-=1) //turn lights to newMusic
// {
// digitalWrite(n,LOW);
// delay(30);
// }
// return yes=1;
// }
// return yes=0;
//}

void zero(int oldMusic, int newMusic)
{
int count;
if(count==10)
{
oldMusic=550;
newMusic=550;
return;
}
if((oldMusic<=(newMusic + 5))&&(oldMusic>=(newMusic-5)))
{
count=count+1;
return;
}
else
{
count=0;
return;
}
}

void loop()
{
int newMusicLeft;
int newMusicRight;
int oldMusicLeft=520;
int oldMusicRight=520;
for(;:wink:
{
newMusicLeft=checkVal(sensorLeft);
newMusicRight=checkVal(sensorRight);
zero(oldMusicLeft, newMusicLeft);
zero(oldMusicRight, newMusicRight);
if(newMusicLeft<=oldMusicLeft) //if the old value is greater
{
for(n=oldMusicLeft;n>=newMusicLeft;n-=1) //turn lights to newMusic
{
digitalWrite(n,LOW);
}
}
if(newMusicRight<=oldMusicRight) //if the old value is greater
{
for(n=oldMusicRight;n>=newMusicRight;n-=1) //turn lights to newMusic
{
digitalWrite(n,LOW);
}
}
if(newMusicLeft>=oldMusicLeft) //if the level is higher
{
for(int n=oldMusicLeft;n<=newMusicLeft;n+=1)
{
digitalWrite(n,HIGH);
delay(30);
}
}
if(newMusicRight>=oldMusicRight) //if the level is higher
{
for(n=oldMusicRight;n<=newMusicRight;n+=1)
{
digitalWrite(n,HIGH);
}
}
delay(30);
oldMusicLeft=newMusicLeft;
oldMusicRight=newMusicRight;
delay(10);
}
}

This is my code and every time that I try and compile it I get the error message:

error: expected initializer before ‘void’

I have no idea why this is giving me this error message. Any input would be wonderful. Thanks

Semi-colon is missing...

int sensor

Type is missing...

int checkVal(sensor)

Please use the hash (button with # on the face) when including code in a message.

Good luck, Brian