Valves Disklavier, pianist and electronics. Hugo Morales Murguia

Transcription

1 Valves Disklavier, ianist and electronics Hugo Morales Murguia

2 Valves For disklavier, ianist and electronics The iece tries to exlore the mechanical characteristics o the instrument through the musical use o some o its artiacts and ossibilities o control. An indeendent machine intervened by human hysical gesture and digital control. The iece is comosed or a Yamaha-Disklavier DC3-Pro acquired by the Conlon Foundation, Amsterdam. Other models o Disklavier maybe equally comatible, ossibilities and resonsiveness should be veriied in advance. Requirements: - A ackage o Bluetack or similar, used to dam some o the strings. - A small stereo amliier, small enough to it discretely inside the disklavier. - Two small transducers 25mm/6Watts or small enough to it in one hand. - Three FSR ressure sensors. And an aroriate interace (e.g. Arduino) - One Ebow - One contact and two condenser microhones - A comuter with an aroriate rogramming language (original rogram written in Max/MSP rovided uon request) General Prearations: - Elongated ieces o Bluetack should be laced along the strings, close to the tuning ins, on the ollowing registers: Highest (rom B to E) Lowest (A, Bb and B) and on the to art o F6 string - The amliier should be on, and both transducers connected to it. The transducers should be laced in such a way they do not resonate or buzz with any art o the iano (e.g. covering the holes on the soundboard). (Fig. 1) - The FSR sensors should be asted on the center o the allboard (keyboard lid) with a comortable distance between them to be activated. - The Ebow (on) should be laced on the E string (one octave above middle E) - The contact microhone is to be attached to the control device underneath the instrument. (Fig. 1) - Two condenser microhones to be directed on both extremes o the hammer s mechanism. (Fig. 1) Arox. duration 15 minutes 2010 Hugo Morales Murguia Commissioned by the Conlon Foundation and Sarah Nicolls or the Gaudemus Music Week 2010, Amsterdam. With inancial suort rom the Fonds Podiumkunst NL

3 Valves disklavier, ianist & electronics Out L FSR sensors Data Interace Mixer Condenser 1 in AMP Audio/midi interace MIDI IN MIDI OUT Contact Condenser 2 Transducers Out R Figure 1

4 Disklavier Electronics A 15 Noise Disklavier Solo Silent Mode simile Ebow simile Disklavier Solo (all actions to be erormed automatically by the comuter rogram) The instrument lays by itsel while the ianist waits o stage and the comuter rogram activates the key mechanism. The disklavier is to be set in Silent Mode. A cluster o three bass notes is ressed oening a -ink noise gate-. The keyboard erorms a - random walk- starting on the highest register and rogressively sreading out to the whole keyboard, this key choreograhy is occasionally interruted leaving some keys ressed (activating the Ebow i this haens to be E) as the contact microhone icks u the sound o the rocessing device holding down the keys. To Sarah Nicolls Valves or disklavier, ianist and electronics.ca 4 min. r a n g e Hugo Morales Murguia 2010 B.ca 5'' Ebow.ca 20'' Pianist enters the stage and subtlety turns o the silent mode = 100 Disklavier Electronics 15 etc....ca 10'' Pulses u.c stos Una Corda Pedal controls ulse dynamic (continuous control) u= 0 to down= Forte Pulses u.c Noise simile semre Ebow Pianist Comuter recognition triggers ulse seed in relation to dynamic range. FFF=32 F=16 mf= = ( ) m m (Noise)

5 2 m m 46 ( ) C Sine wave hold or 5 secs. to trigger next section (autom.) Hold 1/2 5''.ca 5'' *allow allboard to close itsel * In the DC-Pro disklavier model the allboard closes itsel by ushing it gently

6 ' 3 (1 ) (1 ).ca 5'' Pressure sensors send velocity values (0-127) Sensor A (let) Pressure sensors Sensor B (center) (1 ) semre simile Sensor C (right) Pedal changes notes in the indicated sensor 40 45

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8 5 Diskla. u (autom.) 1 50 Interruted (no itch!) Diskla. down Continue

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10 3 23!!! r a n d o m n o t e s a t i r r e g u l a r 3 42 D 2 Transducers T1 T2 m ebow Noise (on some rand. notes) sines m i n i s i d e i a n o.ca 10 oen kbd. lid and walk slowly towards the bell hold transducers uon two high stngs. start moving the trans. along di erent strings variate ressure becoming noisier (remove ebow) move rogressively towards the low register Diskl. 2 Transducers t i m e i n t e r v a l s 5 subito Sines/Noise Diskl. noisier lower noisier lower remain static on that articular sot 15 min.ca