Octahedron is the fifth full-length studio album by American progressive rock band the Mars Volta, released on June 23, 2009. The album was released by Warner Bros. Records in North America and Mercury Records worldwide. It is the last studio album to feature drummer Thomas Pridgen and guitarist John Frusciante, and the first not to feature contributions from keyboardist Isaiah "Ikey" Owens and multi-instrumentalist Adrián Terrazas-González.
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The song "With Twilight as My Guide" appears to take place during the Salem Witch Trials, which is revealed through an interview with opera singer Renée Fleming, who covered the song on her album Dark Hope: "I was especially fascinated by the Mars Volta song, 'With Twilight As My Guide', which is operatic in its scale and musical complexity. I was however a bit concerned about the text, specifically the reference to 'devil daughters'. I said, 'As much as I love this song, I really can't sing it for that reason.' Peter Mensch offered to contact Cedric Bixler-Zavala and asked if the text could be changed, since the overall meaning of the song wasn't completely clear anyway. Cedric responded, "Sure, she can change it. I would just like it to be known that in no way is the lyric supposed to paint women in a bad light... The song feels like it was written during the Salem Witch Trials, and it sarcastically takes the religious right wing slang of how all women were treated. Our last album, Bedlam in Goliath, was one huge metaphor for the way women are treated in Islamic society (honor killings, etc) not just a story about a ouija board... it's meant to make you question the way things are."

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The title and main refrain, "No Woman, No Cry", means "Woman, don't cry". The lyric is sometimes misunderstood outside Jamaica to mean "if there is no woman, there is no reason to cry". The lyric is rendered "No, woman, nuh cry" in Jamaican patois. The "nuh" is pronounced with a short schwa vowel (a "mumbled" vowel, often represented as "uh" in spelling) and represents a clitic ( "weakened" ) form of "no".

Marley mentions the Government Yards of Trench Town, a public housing project in Kingston where he grew up. The lyrics also mention cornmeal porridge, a popular breakfast in Jamaica.

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Los Bitchos is a band based in London, United Kingdom. The band's members are Serra Petale, Agustina Ruiz, Josefine Jonsson, and Nic Crawshaw. They predominantly play instrumental music in the style of cumbia from the 70s and 80s. Petale plays the guitar and writes the band's music, Ruiz plays the keytar, Jonsson plays bass, and Crawshaw plays the drums.

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