Music is a universal language, but text has a place, too. You can comment on scores, and join group discussions.
Every score has a comment thread below it or to the right of it, depending on your screen size. To post a new comment, click in the "Your comment" box, type your comment, and click "Save." You can edit your comment after posting, if you need to—click the ⋮ button at the comment's top right, and the "Edit" link will appear.
To reply to a comment, click the ⋮ button at its top right and the "Reply" link will appear.
The total number of comments on a score (if non-zero) is listed on the page. See also Statistics.
If you're a member of a group, there are three tabs below the group name: "Discussions," "Sheet Music," and "Members." Click the "Discussions" tab to see current and previous discussions.
Off to the right is the "Add discussion" button.
Joining an existing discussion is the same as commenting on scores, which is described above.
Reply from dashboard
You have the option to reply to some types of comments directly from your dashboard. If a comment or new discussion appears among the recent activity on the dashboard, there will be a field below it that says "Write something." Click there to reply without even going to view the actual discussion or comment thread. To view updates from comments on your scores and group discussions you have participated in, go to https://musescore.com/dashboard/comments.