What type of clause is although you sing well?

Here's why:

* Subordinate clause: It cannot stand alone as a complete sentence and depends on a main clause to make sense.

* Concessive clause: It introduces a contrast or exception to the main clause. It often begins with words like "although," "though," "even though," "despite," or "in spite of."

For example:

Although you sing well, (concessive clause) you don't get many opportunities to perform. (main clause)

The concessive clause "although you sing well" contrasts with the main clause "you don't get many opportunities to perform."