MMA has been signed with a unanimous vote from House and Senate.
The bottom line for the MMA is a single source of truth with a single database (blockchain anyone?) for all mechanical licenses. This is a major change in copyright treatment and a giant step in the right direction for songwriters and collaborators. Digital streaming services can now use a single master license for all music.
Producers and Engineers are also able to get compensated directly by SoundExchange now as the AMP Act was part of the new law.