Hoyou was a Flemish born composer who spent most of his career in Germany, he was born in Liège either in 1547 or in 1548. I don't know where he got his first musical training – presumably in Liège, by 1563 he had been a choirboy for several years in the Württemberg Hofkapelle at Stuttgart. His voice broke in that when he would have been fifteen and for many choristers that would have been the end of their careers. But Hoyoul must have been well thought of and showed considerable musical potential because the then Kapellmeister Philipp Weber, persuaded the Duke to pay for him to study with de Lassus at Munich in 1564–5. He returned to Wurtemburg aged seventeen and immediately took up a post that combined the duties of singing as alto and as a composer. The Duke must have been pleased with his efforts because there are numerous records of payments to him and in 1589 following the death of Ludwig Daser appointed him as Kapellmeister. Of all his works his chorale based German motets are perhaps the best known, they're lively and fresh workings of the Chorales with very full harmonics and a rich contrapuntal style as you can hear below in his SATTB setting of Aus tiefer Not schrei ich zu dir (Psalm 130). Enjoy :-).