SOKABE Music Publishing

60 studies by G. Kopprasch for Low Horn vol.1 (no.1~20)

Choral prelude " Vater unser im Himmelreich " by Dieterich Buxtehude for Trumpet & Pf(Organ)

Choral prelude " Vater unser im Himmelreich " by Georg Böhm for Trumpet & Pf(Organ)

The title of the piece, "Dinamica Impulsiva," translates directly into English as "impulsive dynamics," but it is a fictitious dynamics that does not exist. The title was chosen with the intention of depicting the various impulses that propel the music and create a great swell. The original form of this piece was composed primarily between 2013 and 2015, when the composer was in his mid-fifties. This is a modified and completed version of this piece. Music speaks for itself through its sound, so a commentary is essentially useless, but as a "guide" for listening, I will describe the composition of the piece below. This piece is composed of several main motives, themes, fixed forms, and their developments, but it does not follow the classical sonata form, and is rather complex in its aspect. The piece begins with the presentation of the first motive (Allegro ma non troppo) by the timpani soloist, consisting of C# and E notes. The first violin is introduced, and an important fixed note (G♭DFDA♭) is presented by the harp and celesta (Meno mosso). Then, after a passage with a second motive characterized by dotted eighth rests and sixteenth notes, the entire ensemble begins a canon for strings (Più mosso), derived from the first motive. At the height of this canon, the first and second motives are developed, and then we enter a three-beat episode (Leggiero) with pizzicato strings, harp, and celesta. A modified melody of the second motive in the bass instruments and a third motive led by sixteenth notes appear, from which the brass chorale is derived (Risoluto assai). Next, after a recollection of the fixed form, the first motive is recapitulated and developed by the entire ensemble (Agitato). After the slow theme of Lento is recalled, the first motive is recapitulated by the whole ensemble (Agitato), then the slow theme is played by the English horn and alto flute, which is extended by the strings, solo violin and solo cello are introduced, and the fixed motive is recalled again. After recalling the slow theme of Lento, a timpani solo based on the first motive begins and rises (Allegro ma non troppo) over a series of snare drum, and the first motive is reproduced by the whole ensemble. After the fixed note pattern reappears (Meno mosso), an episode featuring woodwinds and percussion is inserted with the fixed note pattern as accompaniment, and the piece proceeds to the coda. The coda (Allegro ma non troppo) recalls the main motive, the slow theme, and the fixed form, and then a new theme featuring triplets is played by all instruments in unison, closing with the second note of the first motive, E, in unison. This piece has been premiered by Tokyo Philharmonic Orchestra conducted by Hiroyuki Mito at Tokyo Opera City Concert Hall, on December 1, 2023.