Audio: invert retrograde (0:08)
An invert retrograde melody is a melody that has been inverted and reversed.
A retrograde melody always changes the rhythm. It does not matter whether the retrograde variant is inverted or uninverted, the rhythm will still be fundamentally different. Consequently, a bit of tweaking is in order. invert retrograde has been tweaked in exactly the same way as retrograde by offsetting the melody half a bar.
Invert and reverse can be undertaken in any order. You can invert first then reverse, or revert then inverse, the result will be the same.