Some players of fretted instruments move the frets to match individual pieces of music.
In modern rock music, some musicians will change guitars every song to have sweeter chords depending on the particular chords in that song.
In modern rock music, some musicians will change guitars every song to have sweeter chords depending on the particular chords in that song.
Rock musicians change guitars (in a live or even studio situation) mostly to get a different sound or a different tuning (like going from "standard" to an open tuning). Not for microtuning adjustments, or because they have moved the frets to match an individual piece.
Some prog musicians might do it, but it surely is not a "rock" custom.
In arabic music, on the other hand, or renaissance music, and other genres, it is, and instruments there often have movable frets.