New #review today: "An album of #PreparedGuitar improvisations might seem like a risky proposition — I’m sure many would be bracing themselves to hear walls of noise and all manner of harshness. But in the expert hands of #BillHorist, Substratum is a rather meditative affair, built of mostly sparse sounds allowed to ring out and decay as their tones subtly change." #ExposeOnline #ExperimentalMusic #AvantGarde http://expose.org/index.php/articles/display/bill-horist-substratum-2.html