Liner notes from LPs - Avant Garde Project
Transcription
Liner notes from LPs - Avant Garde Project
La fin du bruit Synopsis ...t o map o u t Erosphere i s my name fbr t h a t membrane o f nerves which surrounds o u r w o r l d w i t h i t s network o f , waves modulating i n t o an i n f i n i t e number o f frequencies; that cloud of infraand supersensible heat r a d i a t i n g from m e g a b i l l i o n s o f b i o l o g i c a l sources; t h a t r i n g where t h g f o r c e o f t h i s cosmos o f d e s i r e c i r c u l a t e s . We l i v e destiny. within t h e erosphere and d e s i r e i s our Audible v i b r a t i o n s a r e p a r t o f t h e continuum o f t h a t general v i b r a t i o n a l s t a t e r a n g i n g from t h e v e r y low frequency p u l s a t i o n f o r example t h e c y c l e o f a human l i f e t o t h e extremery h o t and e x c e s s i v e l y dangerous r a y s of cosmic space. - - The geometrical laws which surge t o g e t h e r l i k e waves on a wind-tossed sea i n the vibrational f i e l d , the laws o f t h e octaves, t h e g e n i s i s o f a l l have an the harmonics, t o n a l i t i e s , phases i n t e n s e e x i s t e n c e i n t h e narrow t r a v e l i n g band o f frequencies our ear discerns. - - To express t h e g e n e r a l i t y o f these laws, t o make them f e l t m u s i c a l l y , i s t h e dream - o r t h e d e l i r i u m - 'which m o b i l i z e d me i n EROSPHERE-. Simply t o make i t f e l t . For example,' by v i o l e n t l y c o n t r a c t i n g o r expanding masses o f sound events ( p l a y i n g back a c o u s t i c images a t speeded-up o r slowed-down rates) ; ' d i s t o r t i n g groups . o f frequencies on t h e computer by p l a y i n g them through comb' f i l t e r s c o n s i s t i n g o f hundreds o f f i n e t e e t h ; making a c o u s t i c i m p r i n t s o f bodies on surfaces (comparable t o Max E r n s t ' s f r o t t a g e s o r some o f Yves K l e i n ' s p i c t u r e s ) ; producing reverberations which s y n t h e s i z e v i r t u a l spaces. ..let us e x p l o r e t h e erosphere a l i t t l e f u r t h e r . . 1. 2. 3. 4. 0'00 1'50 4'45 9'30 1978-79 ENDNOISE t h e "seven t e r r i t o r i e s " electricity 5. traffic 6. crowd 7. storm 8. 29'50 10'23 19'03 21'45 26' end sky styrene song sphere b l u e eros. F i n i s t h r e , l a n d ' s end, i s t h e name a n c i e n t t r a v e l e r s gave t o t h i s gradual c a v i n g - i n o f the cont i n e n t , t h i s d i s l o c a t i o n engulfed i n fog, beyond which, they sensed obscurely, t h e r e s t r e t c h e d an endless sea... t h e end My t i t l e designates t h e l i m i t o f sound o f s o l i d m a t t e r and t h e foamy f r i n g e where i t dissolves i n t o silence. Seven " t e r r i t o r i e s " a r e t r a v e r s e d i n a sweeping arc. They a r e i n t e r s p e r s e d w i t h e l e c t r i c "skies". Sounds o f t h e e a r t h and o f men: c o n f l i c t s , t r a f f i c 1 4 . Clouds o f pulsed matter, showers o f brittle r e f l e c t i o n s ( 5 ) . Textures and song, p a t h e t i c f r i c t i o n ( 6 ) . G i r a t i o n , ascension ( 7 ) . T h i s describes t h e symbolic s i d e o f t h i s composit i o n , a s i d e t o which Ia t t a c h a g r e a t d e a l o f importance. The musical s i d e c a l l s f o r some comments. For the technique deployed here r a m i f i e s i n t o a v a r i e t y o f dynamic species, i n t o work based on c o n t r a s t s between l i n e s and masses, i n t o temperatures and velocities. The g e n e r a t i v e impe,tus ( a s a g a i n s t t h e music's development) i s g i v e n by something t h a t p e r t a i n s t o c a t e g o r i e s I have a l r e a d y t r i e d t o e s t a b l i s h i n my c y c l e s l i k e llEXPERIENCE ACOUSTIQUE and SON VITESSE-LUMIERE. These works a r e t h e r e s u l t o f t h e s p e c i a l treatment o f t h e m a t e r i a l s and the psychoacoustic r e a c t i o n s they produce. Thus t h e f i e l d o f metamorphoses o f a u d i b l e energy i s based on a.vocabulary o f t r a n s f o r m a t i o n a l operations, which constitutes the t h e o r e t i c a l foundation o f a general music beyond a l l sound and n o i s e categories. The end o f noise, as suggested by t h e word end , has a double meaning: ( 1 ) as l i m i t , f r o n t i e r , r e s t i n g p o i n t , death; ( 2 ) as i n t e n t i o n , p r o j e c t , progress, p r i n c i p l e . Endnoise i s t h e f r i n g e o f s i l e n c e , t h e s i l h o u e t t e o f t h e audible, t h e t h e goal. J u s t as i t i s the extreme l i m i t , substance ( t h e unconsciousness) o f form, the r o o t growth! o f procreation, o f gradual unfolding from t h e beginning o f time. from r a i n t o t h e w e l l s p r i n g Through music, opposites a r e reconciled. Imight have c a l l e d t h i s : "Endless noiset'. - - Eros bleu BLUE EROS 1980 3150 Flames pushing up t h e i r t r a n s p a r e n t surfaces. P l a s t i c i t y o f t h e i r curves. F l u i d , gas, s o n i d plasma. Harmonic w a t e r s p r i t e skin. F a m i l i a r c h a r a c t e r o f t h e i r blaze. Where does i t come from? From t h e f a c t t h a t t h e generating body i s t h e voice, speech a r t i c u l a t i n g i t s c o l o r e d congeries. A l l t h a t remains i s the dynamic movement o f t h e v e r b a l f l u x . Nonetheless a t r a i n e d e a r w i l l d i s cern the f o l l o w i n g drawn. o u t words by computer: ciel ciel fin c i e l t r b s doux b r u i t de t e r r e tremblement f i n terre f i n douce toupie terre fin douce ciel ... ... ... ...... ...... ... ... - ... ... Side 2 26' ..,... ... Side Eros noir 2 .BLACK EROS 1900 2'45 I associate. the n o t i o n o f temperature w i t h t h e harrnonic c l i m a t e produced by a cldud. Temperature, i n t h i s sense, i s t h e general case announced by t h e terms temperedand temperament i n t r a d i t i o n a l music. I stumble across t h i s i d e a i n Claude LBvi-Strauss 'I.. . f i s h , l i k e so inany aesthetes, d i s t i n g u i s h between light and dark perfumes, and bees c l a s s i f y i n t e n s i t i e s o f l i g h t i n terms o f weight - p e r c e i v i n g d a r k n e s s a s heavy and b r i g h t n e s s a s bouyant etc, S t r a n g e a s t h e y sound, t h e s e speculalfions s u i t my purpose. They g e n e r a l i z e f a m i l i a r e x p e r i e n c e s o f q u a l i t y and s i t u a t e them al'ong e continuum. D i s t a n c e . Speed. Pyesaure. D p ~ s i t ' y , Temperature. Color. I n t e n s i t y . I a t t a c h p o r e i p p o r t a n c e t o t h e s e q u a l i t a t i v e c a t e g o r i e s t h a n t o t h e quant i f i a b l e c a t e g o r i e a o f frequency and d u r a t i o n . The t i t l e "Toy t o p ( t o u p i e ) i n t h e skyn i s a reminiscence o f t h e B e a t l e a ' "Lucy i n t h e sky", - ..." ... Toupie dans le ciel TOY TOP I N THE SKY 1979 22'30 bundle o f l i n e s b e n t by t h e f o r c e o f t h e very r a p i d r o t a t i o n s a r e d e r i v e d from t h e sounds made by a n a n t i q u e t o y t o p -its b r e e z y s i r e n ' s whisper. Various f i g u r e s o f t h i s t y p e emerge d u r i n g t h i s piece. A wave o s c i l l a t e s o v e r two descending minor t h i r d s . T h i s low-pitched o s c i l l a t i o n , always unchanging b u t a t t h e same time always v a r y i n g , r e v o l v e s amid a m u l t i t u d e o f h i g h - p i t c h e d d e s i g n s i n s h e e t s o f i n c r e a s i n g d e n s i t y and m o b i l i t y . The monotonous unity o f t h i s movement i s o r g a n i z e d i n t o a s u i t e whose 27 parts c o n n e c t imperceptibly i n v a r i a t i o n s of speed, depth, a c c e l e r a t i o n and o r c h e s t r a t i o n . S k i e s d o t t e d w i t h l i t t l e comets p u n c t u a t e t h e sound t e x t u r e a t intervals. I n t h e middle, a slow s l i d i n g motion p i c k s up d i s t a n t harmonics from t h e b a s i c chord. Towards t h e end t h i s s l i d i n g d i s s o l v e s i n flames. A Return t o Black Eros. Chromatic s c r o l l s . . n o i s e . . . Sheaves. S i l v e r ashes... ... tlreak-down o f the 27 variations : top siren, theme a, theme b large top 1st fairly rapid exposition sweeping, crescendo transposition and inversion sweeping, decrescendo agitated repetition against a sweeping, crescendo decrescendo in space counter-melody (top theme) insert 1 crescendo repetition space ratata 10.01 counter-melody rapid high, slow low (large nonharmonic top) 2 very melodic and nimble rele-ased slow, two voices (top theme) 3 slow repetition, for three voice: (top theme) 4 repetition and anticipation transposition, see n03 very melodic and vibrational higher, sweeping base transposition to the 3rd (large top) 5 eros release and octave ending theme a, theme b see beqinninq -a3 L 0 C i' c e 0 a, r. 0 r j l j ' i V, 3 CI. - V, 'i 33a, = r. 2 V, 0 x 0 u Y I-'. C I S I ~ . P. r P. 3 v VI e. w. c 3 U3vr q3cD- m o r r o V ) 3 . rt &'C a X I - z 0 cu ;P V,%n . a m 3 a a, 0 3 0 n I- 0 .-a, 3 rt m o 3l-q, rt m a SSrt a, u z;. Q . V , $ fP 0 J V , O H-2 -h o m 3 m o 5 Ertcort3 m r . .% 3 3 < rtw E O0 S N w s l j m . V) m a r t " +, 3 5 r(D a m 3 r 5 m m 0 a sclV,V,a 5 0 r-0 m =r+,rtor 1 0 lj r . V ) m 0 0 0 O D 3 3 -SrtU a, m a'r-rt I0 r z r . o m m u 0 C WrtV, 3 I-. < a u l m Acousmatic production or Composition, Procedure and creation 1 The e a r is o n e ' s guide. One s e l e c t s t h e o u t l i n e of a contour, t h e imprint of i n energy, from t h e m a t e r i a l -sound- t h e e s s e r ~ t i a l l yephemeral s t o r y o f the i r r e g u l a r o s c i l l a t i o n s of matter caught more o r l e s s by s u r p r i s e , d i s t u r b e d , caressed o r agressed. 2 Thus the instrument i s no longer a sound o b j e c t o r scene, but a f a i t h f u l o r deforniable e l e c t r o a c o u s t i c mold of t h e i r for111o r image. The s e n s i t i v e Lear~~inal p o i n t s of t h e body ( t h e e a r , t h e f i n g e r s ) come i n contact -they e n t e r i n t o conversation- with v a r i o u s s e n s i t i v e p o i n t s along tht? energy c i r c u i t : keys, c u r s o r s , b u t t o n s , tuning and/or untuning devices on the e l e c t r i c a c o u s t i c c o n v e r t e r . The hur~ian hand on t h e d i a l s , e t c , i s p a r t of t h e machine. l h e system i s open. I t i s t h e hand-machine hybrid t h a t a c t s (becomes a c t i v e , a r t i c u l a t e s ) . 4 Ttw ptlysio-psycl~ological l e v e l s of awareness p o r l i c i p a l e i n making thc d e c i s i o n s , the s k i l l f u l o r f e v e r i s h choices of t h e hand-machine : pleasure, nervousness, emotion, capriciousness, controlled or uncontrolled madness ( a c t i o n - a u d i t i o n ) . But a l s o : reasoning, o r g a n i z i n g , e f f i c i e n c y , t h e e l e g a n t and f r u i t f u l solution (operation-audition). 5 Gestures can be d i r e c t e d , o r even replaced, by t h e i r o u t l i n e o r by an equivalent nurnber-suite ( a l i n e c o n s i s t s of p o i n t s which a r e c l o s e t o g e t h e r . Each point r e p r e s e n t s a value t h a t can be t r a n s l a t e d into, a number. The s e r i e s of values r e p r e s e n t s t h e analogy of t h e g e s t u r e ' s t r a j e c t o r y ) . The computer c a l c u l a t e s them and a s s i s t s i n forming sounds. Or, i f one wishes, i n c r e a t i n g sounds from p a r t i c u l a r models. 6 Owing t o t h e high degree of p r e c i s i o n a t t a i n e d by t h e s e o p e r a t i o n s , an extremely l a r g e nurnber of which can be s t o r e d (and made u l t r a r a p i d by the p r o c e s s e r s ) , new evolutionary p r o p e r t i e s of t h e m a t e r i a l s can be made t o emerge. Meta~eorphoses. We a r e rnoving towards a music t h a t is i n c r e a s i n g l y v i r t u a l with respect t o physical causes and i n c r e a s i n g l y c l o s e t o imaginary rnodel s . 7 But a t t h e same time we a r e a b l e t o approach c l o s e r t o t h e s e c r e t p r o p e r t i e s of t h e c a r . Even i n infancy our l i s t e n i n g apparatus r e v e a l s a s yet unknown a p t i t u d e s , and t h e s e can be developed considerably.Dormant f a c u l t i e s of f e e c i n g , apprehending, d i v i n i n g and dreaming a r e waiting t o be r e l e a s e d . The deep laws of t h e world from which we came f o r t h have t o be fathomed ! t We l e a r n t o read, w r i t e and count. We must l e a r n t o hear and s e e a s w e l l , t o l i s t e n and understand. I n o r d e r t o r e a l i z e our "second n a t u r e " , t h e f a c u l t y t o grasp s i g n s i n s t e a d of t h i n g s . Acousmatic: from t h e Greek akousma: a u d i t o r y p e r c e p t i o n inur definitions by r ran;ois Bdyle: I ) PYTHACORAS, 6th century BC, created an ingeni0~S listening s~lustionb) p l a r ~ n ghlmsr]i behind a curtain; there, in the dark and in total silence, he would sptai lo hls d~s:iples, thus ennabling them t o develop their faculties\ of concentration. Acousmatlc 1s tt~eword h e usps to designate both t.he situation and the disciples themselves. A philosopher, mathematician and musician, Pythagoras left no writings. ?) In our times, with the development o f radio broadcasting in the 50's and the birth o f "nojsr music" (with its main methodological Vestures first outlined b y P-Schaeffer), the poet and writer Je:me Peignot once stated on a radio program: " h a t words do we have to aesignate the distance separating sounds from their source? ...Acousmatic noise is used in the dictionary to designate e sound one hears without being able to determine what has produced it. Well, there you have the definition of the sound object, that building block of Concrete music, the most general music there is, the music " whose head i s heaven's neighbor and whose feet rest in the kingdom of the dead ("Husique enide". a Croupe dr musique concrete program, 1955). ... ... ". - Acousmatic projection or Performance, I n t e r a c t i o n s 1 Using t h e work-model ( p r e p a r e d on one o r more m a g n e t i c s u p p o r t s ) a s a b a s i s , a r k i n f o r c e d image i s p r o j e c t e d , blown-up t o t h e dimensions o f a c o l l e c t i v e l i s t e n i n g space. This p u b l i c a c t r e q u i r e s : so~neone t o be i n c h a r g e sollieone t o o b j c x t i f y a work t h a t up u n t i l now h a s been developed t o t h e limits of s u b j e c t i v i t y sonieone t o c f i s t r i b u t e an a c t i v i t y among a p r o f e s s i o n a l teani i n c h a r g e of t h e equipment , sorrieone t o s a t i s f y tile a c o u s t i c r e q u i r e m e n t s so~neont: t o e n a b l e a ~ i ~ u s i c ac ol n c e p t t o emerge from t h e s e c r i t e r i a . . . . . 2 In t h e f i n a l s t a g e s of composing i n t h e s t u d i o , a mixing/dosing of ttiu el.ernents was o b t a i n e d on a l i m i t e d number o f c h a n n e l s . With t h e i n s t a l l a t i o n o f t h e equipment and t h e a c t u a l r e h e a r s a l s t h e e l e m e n t s a r e d i s t r i b u t e d o v e r two, f o u r o r e i g h t m o d u l a t i o n c h a n n e l s which a r e i n t u r n d i s t r i b u t e d o v e r e i g h t , s i x t e e n , t w e n t y , t h i r t y o r more p r o j e c t i o n tracks. 3 The s o u n d - p r o j e c t o r s (more o r l e s s s p e c i a l i z e d l o u d s p e a k e r s ) a r e p l a c e d a c c o r d i n g t o t h e i r c h a r a c t e r - , b a s s , l a r g e , medium, c l e a r , s h a r p , o v e r s h a r p - t h e i r o u t p u t , t h e i r c a l i b e r and t h e i r d i r e c t i o n - c o n v e r g i n g , diverging, d i r e c t , reflected, indirect... 4 Break-do~n of the projection space ( s t a g e , periphery, c e i l i n g , audience a r e a s ) : a couple of speakers a r e placed i n each "screen" a r e a t o provide a phase c e n t e r . Care s h o u l d be t a k e n t o b a l a n c e t h e c e n t e r s i n r e l a t i o n t o the d i f f e r e n t l i s t e n i n g areas. t h e phase s c r e e n s a r e d i s t r i b u t e d o v e r a t l e a s t t h r e e l e v e l s o f d e p t h : c l o s e , middle and d i s t a n t . t h e s o u n d - p r o j e c t o r s a r e a r r a n g e d by s i z e : v e r y l a r g e , medium and v e r y small. t h e s t e r e o p h o n i c c o u p l e s a r e p a i r e d on t h e c o n t r o l p a n e l i n a c o n v e n i e n t r i g h t - l e f t a r r a n g e m e n t , k e e p i n g i n mind t h a t t h i s w i l l c o n t r o l t h e a c o u s t i c mixing o f t h e phase s c r e e n s and t h e p r o j e c t o r l e v e l s . . . . . 5 Break-down o f t h e work: During t h e p r e p a r a t i o n o f t h e s e q u e n c e s f o r t h e a c o u s t i c and m u s i c a l performance ( i d e n t i f y i n g and numbering them), e s t a b l i s h t h e d u r a t i o n o f t h e p a s s a g e s t h a t a r e t o b e e x e c u t e d f r e e l y and l o c a t e t h e f i x e d p o s i t i o n s d e t e r m i n e d by t h e o v e r a l l s t r u c t u r e o f t h e work. Using your memory, a timer and t h e s c o r e , work o u t t h e e x a c t sequence o f the gestures.. . Once t h e i n s t a l l a t i o n h a s been c h e c k e d , an a c o u s m a t i c c o m p o s i t i o n obv i o u s l y r e q u i r e s a s many p a r t i a l and g e n e r a l r e h e a r s a l s a s a n o r c h e s t r a l work. Acousmatic: 3 ) In h i s T r a i t 6 des O b j e t s Nusicaux ( 1 9 6 t ) , P i e r r e S ~ l > i = ~ lasSZTlites cr t h e term a r o u s n a t i r with "reduced a u d i t l o n u : " . t h e t a p e - r e c o r d e r has t h e Sam! f:7?tlon a r P ! llraqor2s' c u r t i r ~ n : 11 c r e a t e s new phenomena t o observe, but mainly i t c r e g t e s rtrs c0na:l:onl o f ob$err.atlon ...". More r e c e n t l y ' - i n 1974- r r a n c o l s Bayle e v l o y e d t h e t e r r t o designate a type o r music "Lhat (1) is "filmed", developed i n t h e s t u d l o and p r o j e c t e d i n a t h e a t r e l i k e a movie". He proposed uslng i t i n s t e a d of t h e cumbersome end ungainly word " e l e c t r w c o u s t i c " , rendered o b s o l e t e by t h e appearance instrunsnts (on& hrtenot, rlectrlc guitar, synthesizers, of electroacoustic stage microprocessors...). .. "For him t i e . F-Bayle), t h e terms ecousmatic music and ecousrr;?tic Concert a r e more s u l t e d Lo t h e a e s t h e t i c s and t h e l i s t e n i n g and p r o d u c t i o n c o n d i t i o n s o f t h i s i n r l s i b l e music...". tlichel Chion Larousse de l a tlusique 1982 e d i t i o n - - 2. di + . A 11. Y m . + m\ m m m v , c r t r OUI) g 5 3. m m 0 o 3 1 2 g~ ct m t m v , ' C 0 0 3 A. O 0 3 c t u ml v, ctu m m v, 1m 1 3 3 -O CD\ - w.a m C S 1 +m l m 3 m O a rt 2. m 3 c n w ctv, t m -I. w 2. v, m O C O W a w 4.1 3 m m z 3 0 3 m o v, 3 3 a9, c t l m 3 4 22% 1 - m O m . - 5 1 m , 3 -2 11. 2. *-h< r 3 s u a m O 11 O 2.0 mi -1 2 2. v, -r. -v, 3 (Dr s ct 9, 2 m azs- - w 1 3 3 0 art m P s,u V) m - v,ul a. &.O -'.O3 v, wv, 2.m -0 U +A.O -u - s u m - 3 c n w s o c -0- 3 - 1 a;.~ ' I + - ul 3 2- 4% l rD m I m I * :w 2 a5 m s m a m w v , 3 s v , r o *_mu r O u m v, - 3 w o w a +uulct-3 -7 3 2.1 2 " 2.g g v, 2 . m 3 Cr: m l c n w v , S m ct cn P 3 u 2. mi (O\ v, - m m 3 2. m 3 m I )v,ua v, r rto s m 1 1 m r t 0 wr w 2 2. 5 'c O r t o de terre Ce t i t r e ( à "effet Max Ernst") avoue une tendance certaine de ma part à provoquer par surprise 1 'expérience sensitive. J u s t i f i e r 1 'ordre grammatical ou 1 'organisation de sons trop l i b r e s , qu'aucun système ne saurait tout à f a i t contraindre, reste à f a i r e . Cette note e s t alors u t i l e pour indiquer que l'oeuvre se donne comme une succession de "climats", "de paysages", de " t r a n s i t s " . S'enchaînent des températures harmoniques, des espaces clos, des mouvements sourds, u n moment d'affolement, des brillances, des reprises graves qui restent en suspend ... Peut-être que l ' e s s e n t i e l à dire avec c e t t e espècedemusique que nous appelons acousmatique r é v e i l l e (r6vCle) nos rcactions aux matières familières. Les propriétés souterraines de l'écoute bousculent doucement l e s idées. Pour l e compositeur une s e u l e v é r i t é - e t t o u j o u r s l e "grand e x e r c i c e u - sera d'apprendre à écouter, c ' e s t à - d i r e à surprendre l e s cheminements i n s t i n c t i f s q u i mènent du p u r "sonore" au p u r "musical". C ' e s t dans l e s mouvements spontanés e t d i r i g é s de son i n t e n t i o n d'écoute, en a p p r o f o n d i s s a n t c e t t e f a c u l t é d ' y v o i r à 1 'avance des formes ou d ' y t r o u v e r des repères d ' o r g a n i s a t i o n , q u ' i l va e f f e c t u e r ses c h o i x i n t u i t i f s e t c o n s c i e n t s , déterminer son a c t i v i t é . De c e t t e a c t i v i t é r é s u l t e ce q u ' i l e s t convenu d ' a p p e l e r mus ique. Quel1e musique ? Par exemple l a musique acousmatique, c e l l e q u i , p a r d é f i n i t i o n , cache l e s gestes q u i l ' o n t p r o d u i t e . Paradoxalement c ' e s t dans c e t t e musique que l e geste e s t l e p l u s présent. Non pas t e l l e m e n t comme cause immédiate e t v i s i b l e de l a p r o d u c t i o n des sons, mais comme énoncé d'une forme purement sonore. La musique acousmatique c o n s t r u i t un domaine de s i g n i f i c a t i o n dans c e t t e d i s p o s i t i o n . ESPACES I N H A B I T A B L E S Choregraphie Miml G A R R A R D New-York 1969 Photo: Peter MOORE F r a n ç o i s BAYLE . 1932 . Tamatave . Madagascar Oeuvres p r i n c i p a l es l" ESPACES INHABITABLES Choregraphie Lyon 1972 photo: Vittorio BlAGl d 1967-68 Espaces i n h a b i t a b l e s J e ï t a ou Yurmure des eaux ( P h i 1i p s P r o s p e c t i v e ) 1969-72 L 1E x p é r i e n c e a c o u s t i q u e Trois-rêves-d'oiseaux D i v i n e Comédie, L e P u r g a t o i r e 1972-74 V i b r a t i o n s composées Grande P o l y p h o n i e (INA c o l l e c t i o n G R M) Camera o s c u r a C r i s t a l , pour o r c h e s t r e e t sons p r o j e t é s (Radi O France) Tremblement de t e r r e t r è s doux Camera l u c i d a - Charles SINCLAIR 1976-77 1977-78 Ces t i t r e s - parmi une c i n q u a n t a i n e de c e t a u t e u r a p p a r t i e n n e n t au c a t a l o g u e de 1' INA 3 G R M . -