I've compiled others playlists from Splatunes 1,2 & 3, Octotune, Smash Bros & MK8 remixes, and the live performances. Excludes the SFX tracks. Will keep this up to date as more music/lives come out.

Splatoon Music

Splatoon bonus tracks

splatoon

Ikkan, what are you even doing???

【スプラトゥーン３】「 Splatoon 3」C-Side 「Clickbait」 Demo Tape

From Splatoon 3
I do not own this!!
All rights belong to Nintendo

Splatune 3 - Paintscraper (Uotora Demo)

SIDE ORDER TRAILER MUSIC LETS GOOOOOO
Trailer music from the September 14 2023 trailer
from youtube

Side Order Splatoon 3 New Trailer Music | Official OST

(I do not own this song, all rights to Nintendo)

Squid Squad - Metalopod

Squid Squad - Kraken Up

Squid Squad - Seaskape

Squid Squad - Ink Or Sink

Squid Squad - Splattack!

Splatune | Splatoon ORIGINAL SOUNDTRACK

Kraken Up

Seaskape

Ink or Sink

Splattack!

Splattack! (Jam Session)

Opening

Splatoon 2 ORIGINAL SOUNDTRACK -Octotune-

Now or Never! (1st Concert)

SPLATOON LIVE IN MAKUHARI -Shioka Live-

Splattack! (New Stage Squid Dance)

Splattack! ~ Friend List (Autumn 2015 PV)

Splattack! ~ Friend List (Autumn 2015 PV)

Spla2ne