The Speed Of Sound L-R Ann-Marie Crowley, John Armstrong, Kevin Roache, John Broadhurst photo credit Shay Rowan

The Speed Of Sound L-R Ann-Marie Crowley, John Armstrong, Kevin Roache, John Broadhurst photo credit Shay Rowan

The Speed of Sound-L-R-Ann-Marie-Crowley, John Armstrong, Kevin Roache, John Broadhurst. Photo by Shay Rowan.