Imperfectum
# 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
