Is take a listen proper grammar?

"Take a listen" is grammatically correct in informal contexts, but it's not a complete sentence. It's an imperative phrase that means "Listen to this."

Here are some examples of how you can use it:

* "Take a listen to this new song."

* "Take a listen, I think you'll enjoy it."

If you want to make it a complete sentence, you can add a subject:

* "You should take a listen."

* "I'd like you to take a listen."

The phrase "take a listen" is commonly used in everyday speech and is considered acceptable in informal situations.