Chardonnay Musque??

Just read about Chardonnay "Muscate" being grown in the Jura. This is, supposedly, a Chard that has muscat/musky aromatics. I've heard of (and like) Sauvignon Musque. GWT is one of the "musque" varieties. But I never done did heer'd of a Chard Musque. Can anyone enlighten me on this sub-variety?? Anyone ever tried a Chard Musque?? Is there much of it planted in Calif?
Apparently, Matchbook Wines, over in the DunniganHills/YoloCnty makes a Chard Musque. Anybody ever tried that wine?? And???
I, of course, would like to follow Chard Musque from the very start.
Tom