A 20th fret on classical guitars is to accommodate certain musical compositions. Some composers utilize this note in their compositions. There is a generally accepted treatment of this at the end of the fingerboard. It is generally found over the sound hole. The shape and size vary.

classical guitar fingerboard
Posted by | March 16, 2016
Fixing a Common Fingerboard Slotting Mistake

20th Fret Treatment A common mistake is cutting the 20th fret slot all the way across the fingerboard. If you do this you will end up with a tiny slot...

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