From the author's README on Thunderstore

Adds every song off of Jar Of Flies

Playlists & Tracklist

Jar Of Flies

Alice In Chains - Rotten Apple
Alice In Chains - Nutshell
Alice In Chains - I Stay Away
Alice In Chains - No Excuses
Alice In Chains - Whale & Wasp
Alice In Chains - Don't Follow
Alice In Chains - Swing On This

Installation

Install via Thunderstore Mod Manager, or drop into your ReSkate launcher.

Packaged with ReSkate Music Packer

Install AiC JarOfFlies

You need ReSkate and your own copy of skate. on Steam.

Open ReSkateLauncher.exe and go to MODS.
Search for AiC JarOfFlies and click install. The launcher also installs anything it depends on.
Press PLAY. In game, the MODS tab of the ReSkate menu (Insert) turns it on and off.

Or install it by hand: download the .zip and drop it on the launcher window, or unzip it into its own folder in Mods\ beside Skate.exe.

Maps show up in the ReSkate menu's level list. To join a server running a custom map, you need the same map installed. If the game won't load after installing, see known issues.

skatemods doesn't host or review this mod. The download comes straight from Thunderstore. Only install mods you trust, because scripts can run code.