anti-crystalline

a n t i - c r y s t a l l i n e f o r p e r c u s s i o n t r i o , s n a r e d r u m s , a n d o bs i d i a n

Je r e m y R o s e n s t o c k

r o g r a m N o t e s

T he t i t l e o f t hi s p i e c e r e f e r s t o t w o , r e l a t e d t hi ng s :

F i r s t , o bs i d i a n i s a na t ur a l g l a s s , w hi c h r e s ul t s f r o m t he r a p i d c o o l i ng o f l a va , l i m i t i ng t he g r o w t h o f c r ys t a l s . A s a r e s ul t , o bs i d i a n i s a n a m o r p ho us s o l i d - no t a c o ns i s t e nt , c r ys t a l l i ne l a i c e , but a n a p e r i o d i c , no n- fl o w i ng l i q ui d .

S e c o nd , t he s na r e d r um d o e s no t f o l l o w t he o ve r t o ne s e r i e s f o und i n w i nd , br a s s , a nd s t r i ng i ns t r um e nt s . T he s p e c t r a o f a m e m br a ne i s i nha r m o ni c , p r o d uc i ng s t r a ng e , unp r e d i c t a bl e r e s o na nc e s t ha t o c c a s i o na l l y r hym e w i t h t he o ve r t o ne s t r uc t ur e s o f o r c he s t r a l i ns t r um e nt s s uc h a s v i o l i ns a nd t r o m bo ne s .

T o g e t he r , t he s e p hys i c a l o bje c t s r e s i s t c o m p o s e r a nd t he o r i s t Ja m e s Te nne y ' s " ha r m o ni c s p a c e " ( d e s c r i be d i n hi s a r t i c l e s " Jo hn C a g e a nd t he T he o r y o f H a r m o ny " a nd “ O n ‘ C r ys t a l G r o w t h’ i n ha r m o ni c s p a c e ” ) , a t he o r y o f p i t c h- p e r c e p t i o n i n w hi c h a l l p i t c he s a r e r e l a t e d v i a f r e q ue nc y r a t i o s i n r e f e r e nc e t o a c e nt r a l " f und a m e nt a l , " f o r m i ng a m ul t i d i m e ns i o na l l a i c e a nd " p i t c h ' c r ys t a l . ' "

T ho ug h ha r m o ni c s p a c e o ff e r s a p r a c t i c a l m e a ns o f c o m p r e he nd i ng p i t c h i n jus t i nt o na t i o n a nd o t he r t uni ng s ys t e m s ( s uc h a s e q ua l t e m p e r a m e nt ) , s o m e m us i c t r a ns c e nd s a bs o l ut e c a t e g o r i z a t i o ns s uc h a s " p i t c h" a nd " r hyt hm " a l t o g e t he r . N o m a e r ho w we a na l yz e o r no t a t e t he s e s o und s , t he y s k i r t be yo nd t he r e a l m o f t he r a t i o na l , d e m a nd i ng t o be und e r s t o o d o n t he i r o w n t e r m s e nt i r e l y.

T hr o ug h t he us e o f i r r a t i o na l m a t e r i a l s s uc h a s d r um he a d s a nd v o l c a ni c g l a s s , a n t i - c r ys t a l l i n e c e l e br a t e s t he v i s c e r a l a nd t he i m p ur e , e m br a c i ng t he i m p e r f e c t i o n o f m a t e r i a l r e a l i t y i n t he ho p e o f e x p a nd i ng c o ns c i o us ne s s .

Pe r f o r m a nc e N o t e s

E a c h p e r f o r m e r i s e q ui p p e d w i t h t w o r a w bl o c k s o f o bs i d i a n ( p r e f e r a bl y o f d i ff e r e nt c o l o r s ) a nd a s na r e d r um ; e a c h ha nd i s e q ui p p e d w i t h o ne bl o c k . O f t he s e bl o c k s , o ne i s a l s o us e d o n t he m e m br a ne , r e f e r r e d t o a s " O bs i d i a n o n M e m br a ne ( O M ) " he nc e f o r t h. T he o t he r i s us e d t o s c r a p e , r ub, a nd t a p t he o bs i d i a n o n t he m e m br a ne , r e f e r r e d t o a s " O bs i d i a n i n H a nd ( O H ) " he nc e f o r wa r d .

T he O M m us t ha ve a r o ug h s ur f a c e ( c a l l e d " U np o l i s he d S ur f a c e ( U S ) " he r e i na f t e r ) a nd m ul t i p l e s hi ny s ur f a c e s ( c a l l e d " P o l i s he d S ur f a c e s ( P S ) " f r o m no w o n) . O ne P S w i l l be p l a c e d o n t he m e m br a ne , w hi l e t he o t he r w i l l be t a p p e d us i ng t he O H . T he O H m us t ha ve a P S a s we l l a s a c o r ne r /e d g e w hi c h w i l l be us e d t o i nt e r a c t w i t h t he O M . E x a m p l e s o f O M a nd O H , a s we l l a s a ny o t he r ne c e s s a r y o bs i d i a n t e r m i no l o g y c a n be f o und i n t he o bs i d i a n d i a g r a m o n p a g e 5 . L i k e w i s e , a s na r e d r um d i a g r a m a nd r e l a t e d no t a t i o n k e y c a n be f o und o n p a g e 4.

F o r a l l c i r c ul a r a c t i o ns , a s s um e c l o c k w i s e m o t i o n ( unl e s s c o unt e r c l o c k w i s e i s t he o nl y o p t i o n) .

Pe r f o r m e r s /p a r t s a r e t i t l e d " Pe r f o r m e r ( L e f t ) , " " Pe r f o r m e r ( C e nt e r ) , " a nd " Pe r f o r m e r ( R i g ht ) " i n t he s c o r e . T he s e na m e s r e f e r t o s t a g e d i r e c t i o ns ( i . e . " s t a g e l e f t " a nd " s t a g e r i g ht " ) a nd p e r f o r m e r s s ho ul d o r g a ni z e t he m s e l ve s o ns t a g e a c c o r d i ng l y.

A l l p e r f o r m e r s s ho ul d be a m p l i fi e d s e p a r a t e l y a nd m i x e d t o g e t he r i n s t e r e o .

E a c h m o ve m e nt i s f o r a d i ff e r e nt num be r o f p e r f o r m e r s ; t he fi r s t i s a s o l o , t he s e c o nd i s a d uo , a nd t he t hi r d i s a t r i o . A ny m o ve m e nt m a y be p e r f o r m e d s e p a r a t e l y; i f p e r f o r m e d t o g e t he r , a l l m o ve m e nt s s ho ul d be p e r f o r m e d c o nt i nuo us l y, w i t h no p a us e s be yo nd t ho s e i nc l ud e d i n t he s c o r e .

A fi x e d m e d i a p i e c e , na m e d po s t - c r ys t a l l i n e , a l s o a c c o m p a ni e s t hi s p i e c e . T hi s p i e c e m a y be p l a ye d f o l l o w i ng a p e r f o r m a nc e o f a n t i - c r ys t a l l i n e . O p t i o na l l y, p e r f o r m e r s m a y i m p r o v i s e w i t h t he fi x e d m e d i a , us i ng t he i r a m p l i fi e d o bs i d i a n a nd s na r e d r um s .

q = 6 0 ( 1 " )

Pl a y 3 2 x

a n t i - c r y s t a l l i n e I . s o l o

√ 3 2 "

r e m y R o s e ns t o c k

°

Pl a y 3 2 x

™ ™

O P B O T T O M 6

Pe r f o r m e r ( C e nt e r ) ™ ™ ™ ™ 3 ™ ™ ™

Pl a y 1 6 x

s na r e s o ff p r e s s o bs i d i a n o n m e m br a ne ( O M ) i nt o c e nt e r o f d r um he a d s m o o t hl y r ub unp o l i s he d s ur f a c e ( U S ) o f O M w i t h c o r ne r /e d g e ( C /E ) o f o bs i d i a n i n ha nd ( O H ) i n c i r c ul a r m o t i o n, 3 2 t i m e s , 2 " p e r c i r c l e up o n c o m p l e t i o n, a l l o w r e s o na nc e t o d e c a y t o s i l e nc e

√ 9 0 " ˙ ˙ K r Œ ™™™ Ó K r Œ ™™™ ∑ R Ô Œ ™™™ Ó R Ô Œ ™™™ Ó ˙ ˙ ˙ ˙ ˙ ˙ ˙ ˙ ˙

B O T T O M mp

0 "

up o n r e a c hi ng e d g e /a p p r o a c hi ng r i m , s l a m r i m t w i c e w i t h O M : fi r s t w i t h t o p , t he n w i t h bo o m a l l o w O M t o t o uc h r i m w hi l e l a yi ng o n e d g e c o nt i nue r ubbi ng

s c r a p e ( l i ne a r , a g g r e s s i ve ) , t he n r ub ( s e m i c i r c ul a r , r e l a x e d ) U S w i t h C /E , r o ug hl y f o l l o w i ng a bo ve d i a g r a m /no t a t e d d ur a t i o ns ( s i m . )

Pe r f o r m e r ( C e nt e r ) : s c r a p e , fl yi ng o ff O M , a s i n " s o l o "

Pe r f o r m e r ( R i g ht ) : no O H t hr o ug ho ut 8 - 1 0 " U

s na r e s o n p r e s s O M i nt o m e m br a ne s l o wl y m o ve i n c i r c l e s i n c e nt e r e nt e r /e x i t c i r c l e s i n l i ne a r m o t i o ns , q ui e t l y s ne a k i ng i n/o ut und e r s c r a p e s

r e s s i ng O M i nt o m e m br a ne i n s ync w i t h Pe r f o r m e r ( C e nt e r )

l i s s . t o r i m /e d g e l i f t p a r t o f O M o n t o p o f r i m

2 . 5 " U 5 , 1 0 - 1 1 " o ff a br up t l y e nd a f t e r 5 t h c i r c l e , a l l o w i ng r e s o na nc e t o d e c a y t o s i l e nc e

2 . 5 " U a c c e l e r a t e f r o m 2 . 5 " /c i r c l e t o 1 . 5 " /c i r c l e o ve r 5 c i r c l e s , w i t h e nt r o p y 5 , 1 0 - 1 1 "

s t r i k e e d g e ( no r i m ) , t he n g l i s s . , i n s i ng l e g e s t ur e

t he e nd o f Pe r f o r m e r ( C e nt e r ) ' s g l i s s . s ho ul d s ync w i t h t he be g i nni ng o f Pe r f o r m e r ( R i g ht ) ' s c i r c l e s

d o N O T r o t a t e a r o und e d g e o f m e m br a ne ; m a k e a s m a l l c i r c l e o n t he e d g e , s i m i l a r t o t he c i r c l e s p r e v i o us l y m a d e i n t he c e nt e r

s t r i k e r i m , t o g e t he r a l l o w f o r d e c a y t o s i l e nc e

√ 2 5 " mf 1 2

q = 6 0 ( 1 " ) a c c e l . r i t .

Pe r f o r m e r ( L e f t ) Pe r f o r m e r ( C e nt e r ) Pe r f o r m e r ( R i g ht ) 2 a c c e l . r i t .

/ / / mp r ub t he p o l i s he d s ur f a c e ( P S ) o f O M w i t h P S o f O H , i n c i r c ul a r m o t i o ns , w i t h O M i n c e nt e r o f m e m br a ne

√ 2 5 " mf

√ 2 0 " mp

/ œ ™ œj ˙ ™ œ ™ œ J ˙ ™

√ 2 0 " mp

∑ √ 1 0 "

∑ √ 1 4" / / mp r ub, a s be f o r e o n e d g e o f m e m br a ne

j j

10: 8y 10: 8y 10: 8y

U 3 - 4"

Pe r f o r m e r s ( C e nt e r , R i g ht ) : f r e e l y t a p p i ng P S o f O M w i t h P S o f O H , l o o s e l y i m i t a t i ng Pe r f o r m e r ( L e f t ) U 3 - 4"

p i ù m o s s o

r i t .

Pe r f o r m e r s ( C e nt e r , R i g ht ) : e nd f r e e t a p p i ng w i t h s i ng l e hi t

/ j ™ ™ ™ ™

T O P B O T T O M T O P

/

ppp p

ppp B O T T O M T O P p

a c c e l . a c c e l .

√ 2 0 "

p

A L L Pe r f o r m e r s : a c c e l e r a t e i nd e p e nd e nt l y f r o m s i ng l e hi t s t o c i r c ul a r t a p p i ng ( a s no t a t e d i n m m . 1 1 1 /2 )

2 0 "

/ p B O T T O M T O P √

œ

p o c o p i ú m o s s o , o n g l i s s . ( s i m . )

f o r g l i s s . , s l i d e f r o m c e nt e r t o e d g e o f m e m br a ne

p o c o p i ú m o s s o , o n g l i s s . ( s i m . )

f o r g l i s s . , s l i d e f r o m c e nt e r t o e d g e o f m e m br a ne

p o c o p i ú m o s s o , o n g l i s s . ( s i m . )

f o r g l i s s . , s l i d e f r o m c e nt e r t o e d g e o f m e m br a ne

s na r e s o n

s

s na r e s o n, l o ud l y o n a c c e nt e d be a t

s na r e s o n, l o ud l y o n a c c e nt e d be a t

s na r e s o n, l o ud l y o n a c c e nt e d be a t

mf

s na r e s o ff , s ud d e nl y! o n a c c e nt e d be a t

mf

s na r e s o ff , s ud d e nl y! o n a c c e nt e d be a t

mf s na r e s o ff , s ud d e nl y! o n a c c e nt e d be a t

s na r e s o ff , s ud d e nl y!

mf s na r e s o ff , s ud d e nl y!

s na r e s o ff , s ud d e nl y!

s na r e s o n, l o ud l y

c o nt i nue t a p p i ng , c ha o t i c a l l y m o v i ng i n c i r c l e s a r o und m e m br a ne a t i nc r e a s i ng ve l o c i t i e s /c i r c um f e r e nc e s

s na r e s o n, l o ud l y

s na r e s o n, l o ud l y

c o nt i nue t a p p i ng , c ha o t i c a l l y m o v i ng i n c i r c l e s a r o und m e m br a ne a t i nc r e a s i ng ve l o c i t i e s /c i r c um f e r e nc e s

f

> hi t r i m w i t h O M ( no O H ) , e c ho i ng Pe r f o r m e r ( R i g ht ) *

r f o r m e r ( L e f t ) s ho ul d e c ho Pe r f o r m e r ( R i g ht ) , e nt e r i ng s ho r t l y a f t e r r i m hi t c o nne c t e d w i t h d a s he d l i ne