About the Piece

This piece is composed of the following sections: Prologo - Loure - Scherzo I - Scherzo II - Trio - Scherzo II - Scherzo I - Menuetto - Fuga.

The Prologo is a leisurely piece, reminiscent of the slow section of a French overture, characterized by its double-dotted eighth and thirty-second note rhythms.

The Loure features an irregular rhythm, dividing 9/8 into 3/4 + 3/8, which might make it difficult to strictly classify as a Loure. In terms of 12-tone equal temperament, there are 43 types of four-note chords, not counting transpositions, and this piece incorporates all 43 of these chord types. I could not resist the temptation to hear these 43 chord types in meantone temperament.

Scherzo I - Scherzo II - Trio - Scherzo II - Scherzo I forms a continuous sequence, structured as a Scherzo encompassing a Trio. It employs several series where the retrograde and inversion are identical, reminiscent of Webern. Similar to the 43 four-note chords in the Loure, this also arose from a curiosity to hear 12-tone rows in non-12-tone equal temperaments.

The Menuetto — and similarly the opening Prologo — uses a melody that spontaneously came to mind from a photograph of the organ being played this time. Some listeners might perceive a French modern music atmosphere from this Menuetto.

In the final Fuga, its theme again uses a series where the retrograde and inversion are identical, but its harmonization is tonal. The form of this Fuga was inspired by the structure of the organ being used this time.

Looking at the piece as a whole, it appears to follow a progression where elements inspired by the organ's image and those based on musical concepts are juxtaposed, culminating in the fusion of these two aspects.