Following the shutdown of Groove Music service, Cortana’s music recognition ability which was dependent on it is lost too. Microsoft hasn’t officially addressed this situation, but Cortana developer did confirm the feature’s demise on Twitter.
Hi @faltermayer, that is correct: due to the shutdown of the Groove music service, Cortana's music recognition functionality has been retired.
— Jason Deakins (@JasonDeakins) January 3, 2018
Music ID has been available in Windows Phone since WP7.5. It was introduced in Cortana AI back in 2014. The identification was based on AI and the search result would link to Groove’s Music Store. However, since there’s no Groove now pressing the icon only shows “Song unrecognized” in the result. Additionally, you also get “on: this service is retired” and “by: music continues” in the result.
Microsoft has not yet released any updates to fix to hide the icon despite this being known months beforehand. They can either permanently discontinue this feature or integrate other music services such as Apple, Google or Spotify.
For those who’ll miss this feature, there are alternatives available for both desktop and mobile. SoundHound’s mobile app(link below) has been available since WP8 and still works on many devices. For desktop, you can use web-based services such as Midomi on your browser.
Get SoundHound for mobile: