in which instrumentals queen has used in....

One Year Of Love-what kind of instrumentals they used, and which one from the band was playing in each of the instrumental??

same in One vision-but only when brian played his gigantic solo part another sound of guitar was rising? who was playing in the other guitar?

One Year Of Love - http://queen.musichall.cz/index_en.php?s=ps&d=oneyear

One Vision - John: bass, Roger: drums, Brian: guitar, keyboards, backing vocals, Freddie: vocals.