For too long Imogen Holst (1907-84) has been thought of chiefly as her father Gustav's daughter or as Britten's amanuensis. (Her orchestration of his Rejoice in the Lamb is included here.) These world premiere recordings, finely sung by Clare College Choir, remind us how neglected her own compositions, forced into second place by other duties, have been. She was a pupil of Vaughan Williams in the late 1920s and his influence can be heard in the Mass in A minor, resonant in texture, sensitive to the word setting and written under his tutelage. The beautiful Welcome Joy and Welcome Sorrow, for female voices and harp, gives an insight into her own, softly nuanced, pioneering voice.