it has to be assumed that in this instance that the guitar is perfectly in tune played perfectly in time with no bum notes..if any of these conditions apply then its not fair on the listener to judge the song
but ....many a wounderful song ( in my sole opinion ) has been rendered with a very lacklustre performance
and perhaps thats the benchmark...take away the slick performance the bells and whistles
the phil spectre recording the silky vocals...play it slightly out of tune sing it a bit flat
if its a good melody ........job done...you will know
listen to lenon and mccartney
some fantastic music exists but this is a combination of musicianship/recording techniques/arrangements
and imagination....the song is just a part of brew
a good melody doesnt need any of this









