In the meantime, have them check out the beta and ask questions. As a more practical matter, the audio cards don't support it. That is some sort of humanifying quantization methods, internal vibes for general rhythms and so. Well, we didn't create DirectMusic specifically for this, but we did create it to be flexible. Also, our Tool-Graph architecture allows dynamic filtering of the MIDI data, based on intelligent knowledge of the music.
Tools can add different feels.
We are just starting a project that I believe will benefit a lot from DM technology. Include your fax number. In fact, I'm planning to give a demo of one of our products running DM next week. If you use DirectMusic HW acceleration, the CPU consumption is a trivial amount. The DLS2 specification is currently being finalized as it is part of MPEG4.