## 4.Momoko Noguchi (JP)

### < $$\pi$$ > for solo percussion

##### 2008Music composition for solo percussionAudio recorded performance by Kuniko Kato at Hamarikyu Asahi hall, Tokyo, March 200812’46’’

The number $$\pi$$ is the muse of this solo for percussion composed by Japanese artist Momoko Noguchi. This composition is based on the succession of digits of $$\pi=$$3,141592653589793…

In this recorded performance, the musician plays a progression of $$\pi$$ while moving inside a circle composed of 6 different percussion instruments.

Each new digit of $$\pi$$ gives the number of notes to play before moving on to the next instrument.

When it is between 1 and 9, this digit corresponds to the number of sounds to play. The digit 0 is replaced by a hit on the bass drum placed in the center of the circle.
After 762 decimal places of $$\pi$$, the remarkable sequence 999999 appears. The work is a musical transcription of these first 768 decimals. Since the sequence 999999 appears in the decimals of $$\pi$$, what about 333333 or 123456789 or any other sequence I like?

It is conjectured that $$\pi$$ is a disjunctive number, that is, a real number in whose decimals any finite-length sequence of digits can be found.