Tool's fourth full-length album released in 2006.
"Ænema" is a Grammy Award-winning song by progressive metal band Tool, released as the third single from their second album Ænima. Adam Jones made a video for the song using stop-motion animation that appears on Salival. The song reached number twenty-five on the U.S. Mainstream Rock Tracks chart in August 1997.The song makes extensive use of hemiola, a musical technique in which the emphasis in a triple meter is changed to give the illusion that both a duple and a triple meter occur in the song. For example, during the first verse, the beat appears to be in 12/8 timing, while toward the middle of the song when the lyrics from the first verse are repeated, the beat can be perceived as being in 3/4 timing