At least for classical music, finding the right work can be pretty tricky. Unsurprisingly, "Concerto for Horn and Orchestra in D major, Hob. VIId:3: III. Allegro" (the track name on the release I was just editing) didn't find our work, "Hornkonzert Nr. 1 D-Dur, Hob. VIId:3: III. Allegro" - I could add an alias to this specific one, but there are thousands of works with the same issues. The most complete way to allow people to find works like this would seem to be using linked recordings as "aliases" for search.