I have been listening to Tool for the last 3 months and have never before heard more poetic lyrics, nor the original sound they managed to procure using irregular drum beats and drop-D guitar tuning. Though I was saddened to realize that they are somewhat underappreciated with many people dismissing them as pretentious without pausing to consider the genius behind their music. For example, the song 'Lateralus' is written using the fibonacci sequence in its lyrics, and drumming and guitar time signatures, while, in my opinion, describing the universe in 10 minutes. Another example is 'Litanie Contre la peur' which is a musical palindrome - this is far from the best example, but is impressive nonetheless. I would like to know what others make of the band though and why you think they have not become more popular and fully appreciated.