Retrograde is a kind of motivic variation.
The technique is simple: play a melody in reverse. All pitches and intervals remain the same.
belkin-2018 (p.6 par.1) considers it to be a distant form variation.
Examples

Retrograde is a kind of motivic variation.
The technique is simple: play a melody in reverse. All pitches and intervals remain the same.
belkin-2018 (p.6 par.1) considers it to be a distant form variation.
