title: Imperfectum
text: # Imperfectum
  
  Imperfectum (Latin "unfinished" or "incomplete") may mean:
  
  * Imperfect, a verb form
  * Opus Imperfectum, an early Christian commentary on the Gospel of Matthew
  * in the Middle Age theory of music
     * for tempi - tempus imperfectum and tempus imperfectum diminutum - see Mensural notation
     * for consonances see Consonance and dissonance#Antiquity and the middle ages
  