Since you are interested in The Morriston Orpheus Choir - Orpheus, here is a list of other items that you may find interesting.
KORNGOLD / SHOSTAKOVICH / ETC
The Silver Violin
Nicola Benedetti (violin) / Bournemouth Symphony Orchestra, Kirill Karabits
[ Decca Music Group / CD - released 13/Sep/2012 ]
"Benedetti decorates this repertoire with gleaming high-register pirouettes, plus vibrato throbs and hesitations that never descend into schmaltz...Such good taste is a pleasure, though her discretion can make the music paler than necessary." (The Times)
PUCCINI / BIZET / DVORAK / OFFENBACH / DONIZETTI / VERDI / etc
40 Most Beautiful Arias
Maria Callas, Placido Domingo, Cecilia Bartoli, Kiri te Kanawa, Jose Carreras, José Cura, Angela Gheorghiu, etc
[ Warner Classics / 2 CD - released 10/Feb/2009 ]
Nothing stirs the soul and tugs at the heartstrings more than an inspired operatic aria. Warner Classics CD set 40 MOST BEAUTIFUL ARIAS collects forty of the most moving ones the world has known on this star-studded collection.