Parametrical search?

[barend]

OK tried that:
Got v 6.4.6 b.16412

Could only find Advanced Search.

Entering Any fields - contains - Beethoven String Quartets.
Nothing is found.
Put a + after Beethoven, same story.

Then I thought, maybe fill the list first:
1. Beethoven
2. String quartets
3. String quartet

This worked, finding also the records having just one quartet, though IMO it's not a very elegant solution: entering in one line and using + signs would've been easier...