This sound recording is free to use and reuse. You can copy, modify, distribute and perform the work, even for commercial purposes, all without asking permission. The American Folklife Center at the Library of Congress asks that artists approach the materials in this collection with respect for the culture and sensibilities of the people whose lives, ideas, and creativity are documented here. Attribution is recommended but not required.
Also see this detailed guide covering the copyright and ethical considerations of digital sampling of audio and video materials.
Why is this free to use?
Dyann and Rick Arthur, the original copyright holders of the MusicBox Project, relinquished all ownership and copyright of the collection to The American Folklife Center at The Library of Congress in 2010. With this gift, the Library also received copies of the release forms from the performers. Furthermore, Citizen DJ only includes those recordings that contain performances of songs that are in the public domain due to copyright expiration.