Apple today showed the world its subscription-based music service, Apple Music — and streaming startups Rdio and Spotify are not entertained.

Here’s what Rdio had to say:

Welcome, Apple. Seriously.

Welcome to the most exciting and important frontier since the digital music revolution began 16 years ago.

We look forward to responsible competition in the massive effort to make music available legally for anyone to enjoy anytime, anywhere.

Because what we are doing is increasing the value of music by enhancing each individual’s experience with music they love.

Welcome to the task.

Rdio’s response is a punch that’s been waiting to be thrown since 1981, when Apple published this jab at IBM in the New York Times:

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Rdio isn’t the only company to call Apple out on its late streaming music launch. Spotify’s Daniel Ek didn’t bite his tongue and posted this tweet — which he later deleted.

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