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

This is Deep Cut

This is not an official Nintendo account. This song is from Splatoon, and made by Nintendo

Anarchy Poisons

Anarchy Rainbow (Splatoween)

Anarchy Rainbow (SpringFest)

Splatoon 3 - Anarchy Rainbow (Summer Nights Version)

Splatune | Splatoon ORIGINAL SOUNDTRACK

Kraken Up

Seaskape

Ink or Sink

Splattack! (Jam Session)

Opening

Repping the splatlands, we are… DEEP CUT!!
Shiver, Frye, and Big Man!