Dream Theater's prowess shines through in every album, and they have an uncanny ability to add in just about any sound effect possible into their music and have it be an additional flavor added into the soup of their super-long songs.
(Though I'm not sure how a fart in the middle of a song would go... we'd have to see, I guess
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Their songs move from musical area to musical area, with many instrumentals involved. They and Kamelot inspired me to go into music in the first place, and perhaps my music takes influence from Dream Theater instrumentally without me even trying. (I tend to do lots of odd time signatures and key changes, as well as seemingly out-of-place notes, which people always criticize for some reason.
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Anyway, enough verbal praise of them, here's a song from their latest, eponymous album, Dream Theater. I'll let that do the praise for me.