Eon Blue Apocalypse from Tool’s Lateralus
Intension From 10,000 Days
The guitar riff from the 1st track sounds very alike to their Intension melody from 10,000 Days. The motion, the timing, and the note structure are almost identical ( although Intension has a higher pitch ).
A lot of their riffs are re-immersed in their albums, but as such with Tool, you wonder how intentional it was to place the riff in the song, and if there is any relation to the two tracks.