unordered elements in complex type
I am a bit confused. I want to make a complex type composed of unordered elements (that is, not use a "sequence"). Can this be done? I can't find any examples.
An example - I want to have an element (say a cd) which has a title, an artist, and a price. I want these to be able to appear in any order any number of times within the element (hence I can't use "all" either.
If anyone could help it would be greatly appreciated,