A tag is a keyword or label that categorizes your question with other, similar questions. Using the right tags makes it easier for others to find and answer your question.
designed to solicit opinions or best-practices on a particular topic, with the goal of reaching community consensus, often in the form of an approved ruling on an issue.
For questions related to tags: markers attached to questions conveying subject matter and used to sort questions by type.
For questions about tag-synonyms: two tags with identical function that have been merged together into one unit.
The jTab library provides guitar tablature and chord diagrams for this site.
For questions about Music Stack Exchange's ABCjs integration, which lets you write sheet music in posts.