Guitar Tuning
Proper intonation is what makes a guitar’s strings play in tune as you fret different notes on the fret board. If the 12th fret note is flat or sharp, your intonation is off. On most electric guitars you can adjust the intonation for each string individually at the bridge with each saddle. It is impossible to place the frets on the guitar so that all notes on the instrument will be perfectly in tune in every key — simply impossible, because of the way tuning works. However in the shop, when building and setting up guitars, we take all of this into consideration.