Music Copyright on Social Media
Social media music copyright rules --
The FAQs in this section provide some information about copyrights, including how you can protect your own copyrighted works and avoid infringing the copyrights of other people when posting to Facebook, as well as how Facebook addresses reports of copyright infringement. If you believe someone is using your copyrighted work without your permission, you can fill out this form.
https://www.facebook.com/help/1020633957973118/
YouTube
Get answers to top questions about copyright issues.
https://support.google.com/youtube/answer/2797449?hl=en
Twitter responds to copyright complaints submitted under the Digital Millennium Copyright Act (“DMCA”). Section 512 of the DMCA outlines the statutory requirements necessary for formally reporting copyright infringement, as well as providing instructions on how an affected party can appeal a removal by submitting a compliant counter-notice.
https://help.twitter.com/en/rules-and-policies/copyright-policy

The FAQs in this section provide some information about copyrights, including how you can protect your own copyrighted works and avoid infringing the copyrights of other people when posting to Instagram, as well as how Instagram addresses reports of copyright infringement. If you believe someone is using your copyrighted work without your permission, you can fill out this form.
https://help.instagram.com/126382350847838
Pinterest respects the intellectual property rights of others and we expect people on Pinterest to do the same. It’s our policy—in appropriate circumstances and at our discretion—to disable or terminate the accounts of people who repeatedly infringe or are repeatedly charged with infringing copyrights or other intellectual property rights.
https://policy.pinterest.com/en/copyright