Die Reichenauer Sängerschule : Beiträge zur Geschichte der Gelehrsamkeit und zur Kenntniss mittelalterlicher Musikhandschriften (1888)
Brambach, Wilhelm, 1841-1932, Roth, F. W. E. (F. Wilhelm Emil), 1853- Zur Bibliographie des Henricus Hembuche de Hassia, dictus de Langenstein · Leipzig : Otto Harrassowitz · leaf 49
39 'öjj'rS O ^ S K … Das Tonsystciu des Ileraianiius Coutr actus. Jl O Tj O V 25 ü G W O js x: •-H HH ^ X r: ^ i-H K- HH ^ ><J 91
Heinrich, von Langenstein, approximately 1325-1397 · Abtei Reichenau · Music
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
![An illustration from The geomancie / of Maister Christopher Cattan Gentleman. A booke, no lesse pleasant and recreatiue, then of a wittie inuention, to knovve all thinges, past, present, and to come. Whereunto is annexed the wheele of Pythagoras. Translated out of French into our English tongue [by Francis Sparry]. (1591)](https://img.insideoutlibrary.com/img/200/wellcome-wellcome_b30337860-255-3.webp)
