when using i.e. do you need a comma
The Quick Answer. When a word like and, or, and but (called conjunctions) joins two independent clauses (i.e., clauses that could stand alone as sentences), you should put a comma before it. Put a Comma before a Conjunction If It Joins Two Independent Clauses. Words like and, or, and but are known as conjunctions.
In the example above, the conjunction and is not joining two independent clauses. Therefore, a comma is not required after sing if you're following UK conventions. In the US (or if you're an advocate for the Oxford Comma), then a comma would be expected after sing.) Read more about commas in lists.