"164067 386246 BULLOCK, ERNEST |f [componist] HEBER, REGINALD |f [tekstdichter] O most merciful!, koor (4 st.), orgel" . "O most merciful!, koor (4 st.), orgel" . "164067" . "386246" . "HEBER, REGINALD |f [tekstdichter]" . . . . "BULLOCK, ERNEST |f [componist]" . "O most merciful!, koor (4 st.), orgel" . . . "386246" . .