mustaine wrote the music after learning of burton's death in september 1986, so that was long after ride the lightning was released. also mustaine only helped write ride the lightning and call of ktulu on that album as well.
so, do these riffs make up the riffs for 'for whom the bell tolls'? it sounds very similar, but i don't know if this was a tune that dave wrote before or after. it's got the same beat and a very similar feel to it. who is the dave expert?