Actually Spotify has had advanced search syntax at least since 2011: http://web.archive.org/web/20110718125428/http://www.spotify.... It just apparently is not advertised by them particularly well to the users. To search from label Decca, just search label:decca (and then select, for example, "See all albums"), or add label:decca to your more specific search if you want to use it as an additional filter. To be able to tell which of the "Requiem in D Minor, K.626:3. Sequentia:" is "Confutatis" — depends on which device you use. On my computer when I select "See all" next to "Songs" in the results, then the track title column is wide enough to show also "Confutatis", or it is also possible to right-click on a track there and select "Show Credits". On a phone one option would be to add "Confutatis" to the search term, or you could start playing one of the results and then you can scroll left-right with the finger on the currently-playing-info-bar below and see the full track names there.