Tool and A Perfect Circle singer Maynard James Keenan has indulged in his habit of winemaking since 1999. The 47-year-old prog-metal singer owns Merkin Vineyards and Caduceus Cellars near his home in the traditionally un-wine-friendly state of Arizona. The documentary film “Blood Into Wine: The Arizona Stronghold” details Keenan and Stronghold partner Eric Glomski’s foray into grape-growing in the middle of the desert. —Jeff Royer
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