"Not Enough" is the first single from J Mascis's forthcoming mostly acoustic collection Several Shades Of Why. For all of his primary bands and side projects, it's being billed as his first studio-recorded solo collection. "Solo," but Kurt Vile, A Silver Mount Zion's Sophie Trudeau, Kevin Drew, Ben Bridwell, Black Heart Procession's Pall Jenkins, Matt Valentine, and others joined him ...