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Books about Hoyoul:
Renaissance 23, Balduin Hoyoul: Chorale Motets by Balduin Hoyoul (1976)
Wiki information Hoyoul:
Balduin Hoyoul was a Renaissance composer of the Franco-Flemish school. Hoyoul was born in Liège. From the age of 13 he was a singer at the Court in Stuttgart under Ludwig Daser. 1563-64 he was a pupil of Lassus in Munich. In 1589 he took over from...