We always encourage communication on the site, as it's a key part of the collaborative process. There are three main ways to get in touch directly with other artists:
1. Posting a comment on an artist’s Record
2. @-Messaging them on a Record, Challenge, or Project's comment thread (just type in @ and begin typing their name, and select their name from the drop-down list)
3. Posting a comment on their Message Board (which you'll find on their user page)
Heads up! You cannot @mention other users in a Record's description, title, or within the body of a Text Record.