Aquila tenor strings 1st red would be the g string I'm guessing with the 4th white being the aa string but I think I'm backward and the red should be the a and the white should be g. I just noticed after I put on what I thought was the 2nd blue for the c and I noticed the 3rd green string was bigger the the c string. Am I doing it backward? Thanks for a quick answer I'm right in the middle of restringing my Collings. Sorry if this is a stupid question that I should know the answer. Mark