Workshop and 2x4: Claim Your MLC Royalties Are you a songwriter? Do you know about the Mechanical Licensing Collective (MLC)? Do you claim your royalties from the MLC? The MLC is a non-profit created by the US Copyright Office to issue blanket licenses for all US songwriters to the DSPs (digital service providers like Spotify, Apple Music, etc.) and collect all songwriting mechanical royalties for digital streaming. Has your music been streamed online anytime in the last two years? Then you probably have royalties waiting for you at the MLC. Find out how to claim them. 2x4 Showcase featuring Martin Jaffe, Colleen Welsch, Seth Kindheart, Chris Woten.