ISBN 4115502576. 9x12 inches.
This work for marimba duo represents that 'something' whether it is tangible and physical or intangible and imaginary gradually transfigures its 'shape'.
As this work is performed by two players on a single marimba, there is a risk that their mallets could hit against each other. In order to avoid this, each player should consider appropriate usage of four mallets.