Explanation : no.2 of Arban's Method.

This piece (about 8 minutes long) was composed with the intention to bring out the rich sound of the pipe organ and trumpet as much as possible. The music starts with Eb by pedal of the organ. Over the arpeggios of the organ, the theme by the trumpet and pedal tone of organ clime up to reach the major triad on F#. In the second part, the right hand of the organ and the trumpet exchange melodies of mainly 16th notes on a constant running of the left hand of the organ. The central sound in this part changes from Bb, Eb, Gb B and D. The melody line also develops in the scale according to the center tone. The music reaches the solo of the trumpet and the organ makes comping to it. The third part begins with the organ's short cadenza. On the persistent ostinato at the lower part of the organ, the trumpet and the organ's right hand exchange lines of 16th notes, increasing tension from the trumpet and the organ's triplet unison to the climax with the trumpet's harmonic glissandos. After the introduction part is reflected after a pause, the gradually piled up chords designated "Placare" change their color little by little, and finally the music concludes quietly on the chord consisting of 8 tones including the Major and Minor triad on the base note of E natural. This piece has been premiered by Duo Babaar (Trumpet Sogabe Kiyonori, Organ Tsukatani Minako) at Nishikatamachi Church in Tokyo on June 29, 2019.