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 the SS undefined 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.
 * 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 Splatoon 2 has a black and white label on the bottom left that resembles the Parental Advisory Label, which is shared by the album art of DJ Lee Fish, DJ Real Sole, the Seven Seas Crew, and the Squid Sisters in.
 * 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, Octo Eight-Step, and Crater Eighters Routine. This is likely a reference to Marina being an Octarian.

Etymology
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, fitting the marine theme of the SS undefined. It may also be a reference to the American alternative rock band Blue October, as turquoise is a type of blue; one of Blue October's most successful songs is titled Into the Ocean, also fitting the marine theme of the series. The usage of "October" in the name is likely also derived from it including "Octo", referring to the Octarians.