Multiple entries in playlist

[DavidHB]

I'm posting this as a general query, because I don't know whether or not it relates to expected behaviour, or whether the behaviour is a function of MinimServer or the control point (Bubble DS in my case).

The specific case is as follows. In my collection, I have two recordings of the Mendelssohn Third Symphony. If I browse through Genre, Composer, Composition to right-click on the entry for the symphony, and then select Play, I get a playlist in which each symphony appears multiple times. Ideally, of course, I want a playlist that references each recording only once.

Thanks to the useful feature in Bubble DS whereby the number of entries within a particular item is shown once that item has been accessed and the entries counted, it is easy to see what is going on. Below the entry for the symphony within Composition that are entries shown as 2 Albums, 2 items (the works are grouped), Artist, AlbumArtist, Date, All Artists, Conductor and Orchestra. If the playlist is created at the Composition level, playlist entries will be created for all these items, duplicating the entries (in this case) a total of sixteen times.

The problem can of course be avoided by refining the selection within the composition entry, but it would be nice not to have to drill down to the nth degree when all that is wanted is to play the available recording(s) of a particular work. Is it possible for MinimServer to refine the playlist selection sent to Bubble DS so that it does not contain duplicates? Or is this something I should expect the control point to do? If the entries are drawn from a list cached by the control point, there is clearly nothing that MinimServer can do to help.

Thanks in advance for any advice.

David