This is the most efficient way to
string a classical guitar. I have only been perfecting this method with
the years. I recommend you put a cloth or cling on plastic right
above and below the bridge to prevent the strings to damage the finish
during manipulation. If you do not use ball end strings, make a knot at
the end of string 1. I can only start counting how many times this string
snapped during the tensing phase damaging the lacquer.