Free music internet resources:

Audiosocket https://www.audiosocket.com/

CC Mixter http://ccmixter.org/

Chicago Music Library https://www.chicagomusiclibrary.com/

Derek Audette http://derekaudette.ottawaarts.com/music.php

Free Music Archive http://freemusicarchive.org/

Incompetech http://incompetech.com/music/

Internet Archive Audio Archive https://archive.org/details/audio

Jamendo http://www.jamendo.com/en/

Open Music Archive http://www.openmusicarchive.org/

Opsound http://opsound.org/

Petrucci Music Library http://imslp.org/wiki/Main_Page

Public Domain 4U http://publicdomain4u.com/

Royalty Free Music http://www.royaltyfreemusic.com/

Stock Music http://www.stockmusic.net/index.cfm

The Music Bed http://themusicbed.com

Vimeo Music Store https://vimeo.com/musicstore

With Etiquette http://withetiquette.com

Freesound (SFX) http://www.freesound.org/