[Quadraginta annis proximus fui generationi

Source: 
Washington, D.C., The Library of Congress - Music Division, M2.1 XI M5
Folio: 
001r
Sequence: 
1
Feast: 
Fer. 2 per annum
Office/Mass: 
M
Genre: 
IP
Cantus ID: 
909030d
Mode: 
?
Differentia: 
*
Manuscript Reading Full Text (standardized spelling): 
[Quadraginta annis proximus fui generationi huic et dixi semper hi errant corde ipsi vero non cognoverunt vias] meas quibus juravi in ira mea si introibunt in requiem meam
Manuscript Reading Full Text (MS spelling): 
{#} meas quibus iuravi in ira mea si introibunt in requiem meam