Sweetest Violins Explained: Holes Fill In Blanks. Quenqua, Douglas, Violins and Violas, Proceedings of the Royal Society A (Journal), ACOUSTICS, Classical Music, Massachusetts Institute of Technology, Royal Society, Stradivari, Antonio, Cremona (Italy), Amati, Nicolo (1596-1684), Guarneri, Andrea (1626-98), Makris, Nicholas C