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The medical museum in Philadelphia, The Mutter, might be of interest to some of you. It is located within walking distance of the PMA. Here is a link.
The festival brings together 28 core musicians each year, but also involves a much larger subculture of musicians in Baltimore and on the East Coast. Unlike many related festivals, High Zero is not narrow in terms of sensibility or subculture, but rather widely inclusive of all the different types of experimental music-making in the moment. The fact that half of the festival's core participants are from Baltimore speaks to the depth of Baltimore's experimental music subculture, which in recent years has grown to be one of the richest cities in the country for experimental art.