RYM ~ Rate Your Music


RYM is a community-built music and film database where you can rate, review, catalog and discover new music and films as well as participate in contributing to the database itself.

rateyourmusic.com
rateyourmusic.com/lists

Dynamic Range Database ~ Compare Album Loudness


dr.loudness-war.info/

An (optimized) implementation of the music DR measurement (compliant with http://dr.loudness-war.info/), it supports CUE sheets and is faster than all currently available alternatives

~ github.com/magicgoose/simple_dr_meter

The Mod Archive ~ Mod Music Repository


An internet repository for permanent storage of quality music modules from the tracking and demo scene. The Mod Archive began collecting music modules back in 1996. Since then, it has grown and become one of the largest and oldest collections online, thanks to the artists that contributed to The Mod Archive and the Public Domain in general.

modarchive.org

Gearogs ~ Audio Hardware Database & Marketplace


The scope of the Gearogs project includes things like turntables (including all-acoustic phonographs), amplifiers, speakers, mixing desks, effects including spring and plate reverbs, and microphones. It includes instruments that create their sound directly via electronic means (analog and digital synthesizers, for example), but not electro-acoustic instruments such as electric guitars, Fender Rhodes electric pianos and the like, nor electro-mechanical instruments such as the Mellotron, nor opto-electronic instruments such as the Optigan.

Common scenarios where this equipment will be found are in recording studios, hi-fi, and DJ type setups.

https://www.gearogs.com/

mlYou ~ Music Library Utilities Suite


This is a collection of tools to help you manage, maintain, and optimize your own music library for a better experience.

It makes growing and maintaining a music collection of any size easier by automating necessary (but tedious) processes.

The tools currently aim to assist with music organizing and tagging, and playlist management.

Cross-Platform Compatible – Works and tested under Linux (Ubuntu) and Windows. Mac untested but expected to work similar to linux.

github.com/nwrobel/mlYou#playlist-root-path-fixing