7 Pieces from Mikrokosmos, Sz. 108, BB 120 - 7 Pieces from Mikrokosmos, Sz. 108, BB 120: No. 4, Short canon and its inversion: Allegro (Arr. Of Vol. 5, No. 123) (7首选自《小宇宙》的小品，Sz. 108, BB 120)