Turquoise October

Turquoise October, or OCTOTOOL, is a band in Splatoon. They are not seen or referred to in-game, only credited on Splatune for their music. They may be Octotroopers, as suggested in their album art.

Songs
Turquoise October's songs make up the majority of music heard in Octo Valley missions:

Splatoon

 * [[Media:Octo Valley Eight-Legged Advance.ogg|Eight-Legged Advance]]
 * [[Media:Octo Valley Tentacular Circus.ogg|Tentacular Circus]]
 * [[Media:Octo Valley Cephaloparade.ogg|Cephaloparade]]
 * [[Media:Octo Valley Inkstrike Shuffle.ogg|Inkstrike Shuffle / Tornado Shuffle ]]
 * [[Media:Octo Valley Octoling Rendezvous.ogg|Octoling Rendezvous / Tacozones Rendezvous]]
 * [[Media:Octo Valley Octoweaponry (Third Phase).ogg|Octoweaponry]]

Splatoon 2

 * [[Media:Octo Canyon The Girl from Inkopolis.ogg|The Girl From Inkopolis]]
 * [[Media:Octo Canyon Octo Eight-Step.ogg|Octo Eight-Step]]
 * [[Media:Octo Canyon Buoyant Boogie.ogg|Buoyant Boogie]]
 * [[Media:Octo Canyon Shooting Starfish.ogg|Shooting Starfish]]
 * [[Media:Octo Canyon Octarmaments.ogg|Octarmaments]]

Trivia

 * Turquoise October's album 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.
 * They are the second band in Splatoon to have their name changed for localization, after Chirpy Chips.
 * The cover of their album is a reference to The Man-Machine, an electronic music album composed by German band Kraftwerk.
 * 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 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 called Turquoise October because it has Octo in October.
 * Select songs in the Splatoon 2 Turquoise October album have reversed sound clips from the Squid Sisters' songs. The singer in these voice samples may be Callie, as she was under the Octarian's influence during the events of Splatoon 2's singleplayer, presumably when Turquoise October wrote the songs.
 * A note sequence from Now or Never! is used in Buoyant Boogie.
 * It has been speculated that Marina was a member of Turquoise October (or it was simply her solo career) as there are various connections between the two.
 * Ebb and Flow (Demo) shares many motifs with songs in Turquoise October, including the burp-like bass sounds heard in various songs and the five-note jingle heard in the beginning of Eight-Legged Advance and Octo Eight-Step.
 * The tips of Marina's tentacles are turquoise in colour.
 * Turquoise October's songs feature a similar futuristic style to Off the Hook's songs.