Hello emspace,
The Standard Libraries of many wind single instruments products are mapped in whole-tone steps (those were the very first single instruments that were available, so we tried to make the download files as small as possible. IIRC, that´s also the case for the Viennese Horn Standard Library).
The Sample Content of these single instruments is quite similar to the Special Editions (click "Sample Content" on the given product page to compare).
The Full Libraries of each product are always mapped in half-tone steps (and come with MANY more articulations, of course).
Hope that helps.
Best,
Paul
Paul Kopf Head of Product Marketing, Social Media and Support