(b nr St Gall, c 840; d there, 912). Monk of the Benedictine Abbey of St Gall, sometimes known as ‘Notker Balbulus’ (‘the stammerer’). He was the most famous author of Sequence texts in the Middle Ages, in his Liber hymnorum of884, which includes an explanatory and autobiographical preface. He should not be confused with Notker Labeo (c 950-1022), also a monk at St Gall, who wrote five short essays on musical topics.




