Post Tonal Theory Calculator is a convenient utility, useful for any student of post-tonal music. This calculator speeds up both analysis and composition using musical sets. The "clock-face" view provides an intuitive visualization of any set of pitch classes. In addition:
-Instantly see the normal order and prime form of any pitch-class set.
-Easily calculate any transposition, and inversion around any axis
-Instantly see the complement of any set
-Forte numbers coming soon