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> Here's one closer to home for you: An XML representation of a musical > score. Return the trumpet section. Return the first 4 bars. > Return the > second movement. Yes but here I'm more likely to need to know in advance that it has a trumpet section etc. I'm more likely to return the Mods record for the item with a link to the data, than the data intact (or at least support Mods as a supported schema). If I want sections then I'm interested in the relevant sections to the query. Matthew