Our sources

Every original source that we use is available in high-resolution color scans from its home library. Please enjoy perusing them via the links provided below! This will constantly be updated as we add repertoire, so check back often.


Vatican City, Biblioteca Apostolica Vaticana, Manuscript Chigiana VII.C.234, "The Chigi Codex"

This manuscript was copied at the Habsburg-Burgundian court ca. 1504-5. It is one of the most important collections of polyphony from the 15th century; it remains the sole source for the bulk of the music by Johannes Ockeghem, one of the century's greatest composers. It is also beautifully decorated in the so-called "Ghent-Bruges" style.

Peruse our repertoire:

  • Heinrich Isaac Angeli archangeli: f. 249v
  • Johannes Ockeghem Intemerata Dei mater: f. 276v
  • Johannes Regis Clangat plebs: f. 281v
  • Regis Lux solempnis: f. 257v
  • Regis O admirabile commercium: f. 269v
  • Gaspar van Weerbeke Stabat mater: f. 245v

Vatican City, Biblioteca Apostolica Vaticana, Manuscript Capp. Sis. 15

This manuscript was copied piecemeal for the choir of the papal chapel during the 1490s. Severe ink corrosion has left many of its folios difficult to read, but it remains an important source for contemporary musical texts and the musical habits of the Sistine Chapel during its first few decades.

Peruse our repertoire:

  • Josquin des Prez Illibata Dei virgo nutrix: f. 246v

Munich, Bavarian State Library, Mus. Ms. 12

This manuscript was copied for use at the Bavarian court at Munich sometime after 1524, probably not too long after 1530. It forms part of a much larger complex of choirbooks prepared as that chapel significantly expanded under the direction of its new court composer Ludwig Senfl.

Peruse our repertoire:

  • Josquin des Prez Stabat mater: f. 111v
  • Ludwig Senfl: Ave Maria...virgo serena: f. 32v