Ah! I tried something like that, referencing PlayerAddress rather than PlayerAddress/Address and then specifying the path "Address/@AddressType" but I would get an error:

XQuery [value()]: 'value()' requires a singleton (or empty sequence), found operand of type 'xdt:untypedAtomic *'

I did not know what that was, and couldn't figure out from documentation, but I see the [1] filter resolves that. I'll need to study it more to fully understand, but this does in fact work.

Thank you very much!