Learn how to say Fretted correctly in English with this tutorial pronunciation video.
Oxford dictionary definition of the word fret:
each of a sequence of ridges on the fingerboard of some stringed musical instruments (such as the guitar), used for fixing the positions of the fingers to produce the desired notes.
verb (frets, fretting, fretted)
[with object] (often as adjective fretted)
1provide (a stringed instrument) with frets:
a fretted neck
2play (a note) while pressing the string down against a fret:
early 16th century: of unknown origin