Open - free to use and repurpose
Free - free to use
Affordable - available at low cost
Free North Shore - available to NSCC students and faculty
The National Jukebox provides links to historical sound recordings for public use. Included in this collection is music from the early to mid-twentieth century United States.
The International Music Score Library Project contains links to over 34,000 recordings (mostly classical) as well as over 309,000 scores.