Xbox Music is now Groove, as Microsoft recycles and rebrands | Ars Technica

Via Charles Fitzgerald

"Microsoft previously used the Groove name for non-music purposes. In 2005, Microsoft bought Groove Networks to acquire its Groove product for providing offline access to SharePoint files. Groove was initially developed by the creator of Lotus Notes, Ray Ozzie, and it was subsequently renamed to SharePoint Workspace. Today, it's been mostly superseded by OneDrive for Business."

Xbox Music is now Groove, as Microsoft recycles and rebrands | Ars Technica