noun
: a musical fugue capable of being played in retrograde as if read in a mirror placed at the end of the composition or capable of being played in inversion as if read in a mirror placed underneath the music
noun
: a musical fugue capable of being played in retrograde as if read in a mirror placed at the end of the composition or capable of being played in inversion as if read in a mirror placed underneath the music
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012