Turquoise October

Turquoise October is a band or musician in the Splatoon series. They made the majority of the songs that play in Octo Valley, Octo Canyon, and the Crater.

Members
Turquoise October is Octarian, but it is unknown how many members comprise it; the only known member is DJ Octavio, who serves as its producer.

Description
Noted as being significantly different from music made by Inklings, Turquoise October's music regulates and inspires the Octarians. Their musical style is an energetic and irregular combination of house and electronic dance style music, featuring heavy use of electronic instrumentation, humorous sampling, and intense percussion. Turquoise October's first album was made available through piracy rather than a label release. An Inkling reporter named Tsukeru Okimoto describes suddenly waking up at 7 AM in the morning after listening to Turquoise October's music, suggesting the "diligent" effect their music indues in the Octarians may affect Inklings as well.

In, with the arrival of Callie in Octo Canyon, their music became more influenced by Inkling music, incorporating more pop elements.

Trivia

 * Turquoise October's first album's art is unusual in that the text on it resembles their name in English localizations (looking like "TURQUIOZ OCTOBER" ), rather than the original Japanese name. The second album, however, stylizes the band name like the Japanese name.
 * They are the first band in to have their name changed for localization, preceding the Chirpy Chips.
 * The cover of their first album is a reference to The Man-Machine, an electronic music album composed by German band Kraftwerk.
 * Their album art in Splatoon 2 bears a strong resemblance to the X∞Multiplies album cover from the real-world band Yellow Magic Orchestra.
 * Turquoise October's name may be a reference to Tom Clancy's The Hunt for Red October, a novel involving naval officers and a submarine, reminiscent of the Great Turf War.
 * It may also be a reference to the American alternative rock band Blue October, simply changing the type of blue. One of Blue October's most successful songs was titled Into the Ocean, which fits with the oceanic theme of Splatoon as a whole.
 * It may also be named because October includes Octo.
 * Several Turquoise October songs in Splatoon 2 feature Callie's vocals from various Squid Sisters' songs, albeit reversed. This is likely to foreshadow the fact that she was under the Octarian's influence during the events of Splatoon 2's story, presumably when Turquoise October wrote the songs.
 * The title of The Girl from Inkopolis is probably a reference to Callie, due to her hypnosis by DJ Octavio during.
 * The sunglasses the Octotroopers are wearing in the album art resemble the Octoling Shades. Alternatively, they may be hypnoshades, referencing Callie having been brainwashed.
 * Buoyant Boogie, which contains a note sequence from Now or Never!, only plays in even-numbered missions.
 * An edited version of the band's album cover from Splatoon appears in several Splatoon 2 stages. The original Turquoise October art can be seen on the top of Crusty Sean food truck's awning.
 * In Splatoon 3, this flyer is purchasable as a sticker, where it is called the "OKTOKTOKT flyer".
 * Their album cover in has an easter egg: a black & white label in Inkling (or Octarian language) on the bottom left, most likely the in-universe version of the Parental Advisory Label, which is shared by the album art of DJ Lee Fish, DJ Real Sole, and the Squid Sisters in Splatoon.
 * Ebb & Flow (Demo) shares many motifs with songs by Turquoise October, including the burp-like bass sounds heard in various songs and the five-note jingle heard at the beginning of Eight-Legged Advance and Octo Eight-Step.