i was playing a guitar today in my local guitar shop i noticed it had about 4 frets at the high end that where cut out like on the wood it didnt change the sound and i was just wondering what it was for.
can you explain?
sounds like some fret scalloping. thats common on some 24 fret guitars to have frets 21-24 scalloped... i think alexi laiho might have that?
Wikipedia -- The "scooped out" nature of scalloped fingerboards creates a number of changes in the way the guitar plays.

Most obvious, is that the string only comes into contact with the frets and the fingertip with the string, not the fingerboard itself, creating less friction for bends and vibratos, which results in more overall control while playing.

However, that is also one of the main disadvantages. Many players, especially new players, may find a scalloped fingerboard to be too different to play easily. And it does take practice to play well on a scalloped fingerboard. The player has to first become accustomed to not actually touching the fingerboard, which may take a while in itself. Playing a scalloped fingerboard also requires a careful balance of pressure; because too much pressure can change the pitch of the fretted note, as during a bend, and too little pressure can cause fret buzz. As a result the majority of players choose to use a traditional fingerboard on their instruments.
Your opinion is just that, YOUR opinion. It doesn't make you right. It doesn't make you better. It doesn't make you god. Everyone has their own view and that view is neither right or wrong.

Ignorance destroys music.