Peter Van de Graaf shares some of his favorites, from the late German tenor Fritz Wunderlich to American soprano Renee Fleming.
The school shootings in Newtown, Conn. have revived memories of another massacre at a primary school in Scotland in 1996.
Sixteen children, most of them just five years old, were gunned down in Dunblane on March 13, 1996. A teacher was also killed by a 43-year-old gunman named Thomas Hamilton.
The killings in Scotland spurred the passage of law that banned the private ownership and use of handguns in Britain.
In the photo above: TOP ROW, From left: Teacher Gwen Mayor, 45, dead: Ryan Liddell, 5, injured: Robbie Hurst, 5, uninjured: Kevin Hasell, 5, dead: Stewart Weir, 6, injured; David Kerr, 5, dead: Coll Austin, 6, injured: Robert Purves, 5, injured: SECOND ROW, From left: Rachel Hally, off sick; Charlotte Dunn, 5, dead: Emily Morton, 5,dead: Joanna Ross, 5, dead: Emma Crozier, 5, dead: Victoria Porteous, 5, injured: unidentified child: THIRD ROW, From left: Abigail McLennan, 5, dead: Sophie North, 5, dead: Hannah Scott, 5, dead: Megan Turner, 5, dead: Amy Hutchinson, 5, injured, Mhairi McBeath, 5, dead: Amy Adam, 5, injured: BOTTOM ROW, From left: Andrew O’Donnell, 5, injured: Matthew Birnie, 5, injured: Mark Mullan, 5, injured: Benjamin Vallance, 5, injured: Brett McKinnon, 6, dead: John Petrie, 5, dead: Ross Irvine, 5, dead: Two additional children, not in the class photograph, Melissa Currie and Victoria Clydesdale, both aged 5, were also killed.