"Music on this site is licensed under a Creative Commons license. You are free to download and sample from music on this site and share the results with anyone, anywhere, anytime."
"The Free Music Archive is a digital repository for music that wants to be shared, with more than 100,000 free and legal tracks to stream and download."
"This library contains recordings ranging from alternative news programming, to Grateful Dead concerts, to Old Time Radio shows, to book and poetry readings, to original music uploaded by our users."
"2024 pieces of music – free to download, modify, print, copy, distribute, perform, and record – all in the Public Domain or under Creative Commons licenses, in PDF, MIDI, and editable LilyPond file formats."
"Many Flickr users have chosen to offer their work under a Creative Commons license, and you can browse or search through content under each type of license."
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"Whether you’re a filmmaker, musician, designer, student, or just a history buff, the Pond5 Public Domain Project is making copyright-free media available for you."
"Wikimedia Commons only accepts free content... that [is] not subject to copyright restrictions which would prevent them being used by anyone, anytime, for any purpose."
Click on Advanced Search in the upper right hand under the gear icon. In the Advanced Search page, click on the link at the bottom that includes "Usage rights". There you can filter your results by licensing combinations.