Companion volume (v. 2) contains examples of the music, sources and critical notes.

The Speculum musicae of the early fourteenth century, with nearly half a million words, is by a long way the largest medieval treatise on music, and probably the most learned. Only the final two books are about music as commonly understood: the other five invite further work by students of scholastic philosophy, theology and mathematics. For nearly a century, its author has been known as Jacques de Liège or Jacobus Leodiensis. ’Jacobus’ is certain, fixed by an acrostic declared within the text; Liège is hypothetical, based on evidence shown here to be less than secure. The one complete manuscript, Paris BnF lat. 7207, thought by its editor to be Florentine, can now be shown on the basis of its miniatures by Cristoforo Cortese to be from the Veneto, datable c. 1434-40. New documentary evidence in an Italian inventory, also from the Veneto, describes a lost copy of the treatise dating from before 1419, older than the surviving manuscript, and identifies its author as ’Magister Jacobus de Ispania’. If this had been known eighty years ago, the Liège hypothesis would never have taken root. It invites a new look at the geography and influences that played into this central document of medieval music theory. The two new attributes of ’Magister’ and ’de Ispania’ (i.e. a foreigner) prompted an extensive search in published indexes for possible identities. Surprisingly few candidates of this name emerged, and only one in the right date range. It is here suggested that the author of the Speculum is either someone who left no paper trail or James of Spain, a nephew of Eleanor of Castile, wife of King Edward I, whose career is documented mostly in England. He was an illegitimate son of Eleanor’s older half-brother, the Infante Enrique of Castile. Documentary evidence shows that he was a wealthy and well-travelled royal prince who was also an Oxford magister. The book traces his career and the likelihood of his authorship of the Speculum musicae.

Nicholas Temperley has pioneered the history of popular church music in England, as expounded in his classic 1979 study, The Music of the English Parish Church; his Hymn Tune Index of 1998; and his magisterial articles in The New Grove. This volume brings together fourteen shorter essays from various journals and symposia, both British and American, that are often hard to find and may be less familiar to many scholars and students in the field. Here we have studies of how singing in church strayed from artistic control during its neglect in the 16th and 17th centuries, how the vernacular 'fuging tune' of West Gallery choirs grew up, and how individuals like Playford, Croft, Madan, and Stainer set about raising artistic standards. There are also assessments of the part played by charity in the improvement of church music, the effect of the English organ and the reasons why it never inspired anything resembling the German organ chorale, and the origins of congregational psalm chanting in late Georgian York. Whatever the topic, Temperley takes a fresh approach based on careful research, while refusing to adopt artistic or religious preconceptions.

List of members in v. 4-5, 7-10.