Franz Joachim Brechtel's Musical and Calligraphic Contributions From The 16th Century
A 24-page manuscript dominates Middle German blackletter scripts with extravagant embellishment, and a minority of the pages contain ‘less’ ornamental writing in Latin. The manuscript appears to be a compilation of calligraphic examples by one of the originators of early fraktur scripts, Johann Neud
Source: designyoutrust.com