key changes can be really effective if used properly, for example a key change to a relative minor or to a relative major can add to the song greatly.hurlingdervish wrote:Changing keys= AWWW FUCK ITS THE SAME PART AGAIN SLIGHTLY HIGHERR
dont do it
changing scales....
if you wanted to get technical, each chord in the song has a specific scale attached to it, but 90 percent of the time its the same scale as you started with but starting on a different note.
in layman's terms
really just use the notes make up each chord and maybe pitch up or down a couple in the riff to make it interesting.
you dont need to change the scale you are using for each chord, although it can be effective to orientate the melody or bassline around the arpeggio of the chord that is being played. Sometimes in blues it is necessary to change scale; if it is a 12 bar blues played with all dominant 7th chords and you were playing a mixolydian mode (for example) over the top of it, you would have to play the mixolydian of the chord that you were on. This is because essentially there can't be multiple dominant 7th chords in one key, so it is necessary to change the mode scale to keep with the chords. this is only the case with modes though as far as i know - if you were to play the same blues with a pentatonic scale you would only need to use the pentatonic scale of the key that you are in.