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Study in Fifths I

by Masamichi Kinoshita

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about

First, the background electronic sounds are all decided on the basis of prime numbers and pi. The total performance time is 3,559 seconds. The pitch is set at A=442. Five-note intervals (fifths) are taken above and below, and these are replaced by prime numbers of approximate value to form the basic pattern.

Next, pi is divided into two-digit segments. The remainders of these segments divided by 11 are used as a substitute sequence, and the ways in which this shifts the basic pattern (pitch changes, duration of sustained sound, duration of rests) are determined.

For the flutes and keyboard, 47 measures containing brief sound patterns (with intervals based on the above mentioned fifths) are performed independently and read in the form of a whirlpool. The four-page score is performed in the order [1-2-3-4-3-2-1]. The whirlpool configuration differs in the first and second parts. (Masamichi Kinoshita)

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Contemporary classical composer Masamichi Kinoshita was born in 1969 in Ono, Fukui Prefecture. He currently lives in Tokyo. Kinoshita regularly performs at Ftarri in Suidobashi, Tokyo. In February 2020 he held the first concert in the series "Ftarri's Harmonium," featuring the harmonium housed at Ftarri. The series has since continued at a rate of one concert every few months; the fifth was held on July 3, 2021. In each concert, Kinoshita (on harmonium) performs his own compositions, along with several invited guest musicians.

In concert number five, his guests were La Soeur, the flute duo of Airi Kasahara and Seira Murakami. The two have a strong connection, partly due to of the similarity of their backgrounds: a year apart in age, both were born in the Tohoku region (Kasahara in Miyagi Prefecture and Murakami in Akita Prefecture) and graduated from the Culture/Arts Course of Yamagata University's Faculty of Education. While also performing and recording individually and teaching flute, they continue their duo project La Soeur.

At the fifth concert, three works by Kinoshita were performed. This CD is a recording of the longest of the three, which was the last to be performed: "Study in Fifths I (for two flutes, keyboard and electronic sounds)" [59:44]. The mystical and gentle sound of Kinoshita's harmonium and electronics expands through the space, and La Soeur's flutes come in and produce sound that seems to revolve around and around as it reverberates. An hour in length, this large-scale work is a profound and mysterious masterpiece.

まず背景の電子音ですが、すべてを素数、また円周率で決定しています。全体の演奏時間は3559秒です。ピッチはA=442としてそれぞれ上下に五度音程を取って行き、それを近似値の素数に置き換えたものを基本形とします。  次に円周率を2桁ごとに切って、それを11で割った余りに置き換えた数列を使い、基本形をどう動かすか (ピッチの変化、持続時間、休止時間) を決めます。フルートとキーボードは、簡潔な音形 (音程は上記の五度音程に準拠します) が書かれた47マスを、渦を巻くように読みながらそれぞれ独立して演奏します。楽譜は4枚あり、1-2-3-4-3-2-1の順番で演奏します。渦の巻き方を前半と後半で変えます。(木下正道)

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木下正道は1969年、福井県大野市生まれ、東京在住の現代音楽作曲家。作曲以外にも、電気機器による即興演奏や、コンサート企画もこなす。木下は東京、水道橋の Ftarri に継続的に出演している。彼が Ftarri に置いてあるハーモニウムを使ったコンサート・シリーズ「Ftarri のハルモニウム」の第一回をおこなったのが、2020年2月。それ以来、数ヶ月に一度の割合でこのシリーズは続いていて、2021年7月3日に第5回が開かれた。いつも木下が自らの作曲作品を用意し、彼はハーモニウムの演奏も担当、ほかにゲスト演奏家を数人呼んで演奏を繰り広げる。

第5回のゲストは La Soeur という名の、笠原愛里 (かさはらあいり) と村上聖 (むらかみせいら) のフルート・デュオ。笠原と村上は年齢が1歳違いで、共に東北出身 (笠原が宮城県、村上が秋田県)、そしてふたりとも山形大学地域教育文化学部音楽芸術コースを卒業した間柄。それぞれ演奏やレコーディングをおこなったり、フルート講師として活動しながら、La Soeur のデュオ・プロジェクトを続けている。

第5回のコンサートでは木下の3作品を演奏したが、本CDには、最後に演奏された最長の「五度音程のための習作 I」(二本のフルートとキーボード、電子音のための) [59分44秒] を収録。木下が演奏するハーモニウムとエレクトロニクスの妖しく柔らかなサウンドが空間に広がり、そこに La Soeur のフルートがふっと入ってきて、そしてぐるぐる回るように音を鳴り響かせる。幽玄にしてミステリアスな1時間の大作。

credits

released October 31, 2021

Masamichi Kinoshita: harmonium, electronics

La Soeur
Airi Kasahara: flute
Seira Murakami: flute

Composed by Masamichi Kinoshita

Recorded live on the concert series Ftarri's Harmonium Vol. 5 at Ftarri, Tokyo, July 3, 2021
Recorded and mastered by Ftarri
Artwork/design and translation by Cathy Fishman

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