On the recording view, it would be helpful to have an selection to pick whether the recording is explicit or clean, and default to not rated.

An example of implementation is iTunes. They have a rating atom where a 0 is un rated, 1 is explicit and 2 is clean. To make sure it is clear, a 0 (unrated) means there is no explicit and clean version, just the one.

this is very helpful information. If there is a rating of 1, you know there is a 2 out there, if not in your library. If there is a 0, you know there are no other rating there, explicit or clean. I mention this portion as there is a tendency for some to say clean or explicit only, where not rated is clean. I wanted to explain why a 0 is nice to have vs calling them all clean.