Vaughan Williams, was published in 1906, and became one of the most influential hymn books ever published. It was supplanted in 1986 by the New English Hymnal. The acceptance of hymns in Anglican liturgy led to the adoption of the folk tradition of Christmas carol singing during the 19th century, the popularity of which was enhanced by Albert, Prince Consort teaching German carols to the Royal Family. The Festival of Nine Lessons and Carols originated at Truro Cathedral in 1888 as a means of attracting people away from pubs on Christmas Eve; a revised version was adopted at King's College, Cambridge, first broadcast on BBC radio in 1928 and has now become an annual tradition, transmitted around the world. This has done much to popularise church music, as well as published collections such as Oxford Book of Carols (1928) and Carols for Choirs. Following the early music revival of the mid-20th century, the publication of collections such as the Oxford Book of Tudor Anthems encouraged renewed interest in 17th-century composers such as Byrd and Tallis. In all but the smallest churches the congregation was until recently confined to the singing of hymns. Over the past half century or so efforts have been made to increase the role of the congregation and also to introduce more "popular" musical styles in the evangelical and charismatic leaning congregations. Not all churches can boast a full SATB choir, and a repertoire of one-, two- and three-part music is more suitable for many parish church choirs, a fact which is recognised in the current work of the Royal School of Church Music. Anglican churches also frequently draw upon the musical traditions of other Christian denominations. Works by Catholic composers such as Mozart, Lutherans such as Bach, Calvinists like Mendelssohn, and composers from other branches of Christianity are often featured. This is particularly the case in music for the Mass in Anglo-Catholic churches, much of which is taken from the work of Roman Catholic composers. Traditionally, Anglican choirs were exclusively male, due to a belief that girls' voices produced a different sound. However, recent research has shown that given the same training, the voices of girls and boys are indistinguishable. Salisbury Cathedral started a girls' choir in 1991 and others have since followed suit. There has been some concern that having mixed choirs in parish churches leads to fewer boys being willing to participate. See also