Page 1

Alan Keown

Constructive Interference

for solo multipercussion

Constructive Interference by Alan Keown Š 2014 Tapspace Publications, LLC (ASCAP). Portland, OR. All rights reserved. International copyright secured. Printed in USA. www.tapspace.com Notice of Liability: Any duplication, adaptation, or arrangement of this composition requires the written consent of the copyright owner. No part of this composition may be photocopied or reproduced in any way without permission. Unauthorized uses are an infringement of the U.S. Copyright Act and are punishable by law.

TSPCS-61


Program Notes In physics, interference is a phenomenon in which two waves superpose to form a resultant wave of greater or lower amplitude. Interference usually refers to the interaction of waves that are correlated or coherent with each other, either because they come from the same source or because they have the same or nearly the same frequency. Interference effects can be observed with all types of waves, for example, light, radio, acoustic and surface water waves. If a crest of one wave meets a crest of another wave of the same frequency at the same point, then the magnitude of the resulting wave is larger – this is constructive interference. If a crest of one wave meets a trough of another wave, then the two waves cancel each other out and the resulting wave is a straight line – this is known as destructive interference. This piece is not a literal representation of this principle but takes its inspiration from the concept. The slow,t opening movement should be played as lyrically as possible, legato and following the phrase markings. The movement begins and ends with a “heartbeat” motive that is consistent throughout the piece. This movement was written on a plane after hearing an amazingly lyrical marimba performance by Pius Cheung at a PASIC concert. The second, fast movement builds upon a driving sixteenth-note motive that is interrupted by the “heartbeat” motive that was presented in the first movement.

Instrumentation Constructive Interference requires 1 player with the following instrumentation: • • • • • • •

1 china cymbal (16") 1 suspended cymbal (18") 2 brake drums (1 high, 1 low) 1 set of bongos 1 set of congas (1 high, 1 low) 2 concert toms (1 high, 1 low) 2 bass drums (1 high, 1 low)


f f

f7

Suggested Setup æ fæ fm

Roll Notation

ru sh

f Co

ng

as

f

t C

f s

s

m

f

Sh or

f m

ss D ru

/

T (a rad lte it rn ion at a in l R g o sin ll Lo gl ng es C ) ru sh

R ol l

Bu zz

/ To

Ba

¿

f

. fm

O ‚

in

¿

Ch

Be ll

a

e

as h Ed g

¿ Cr

s

m s

suspended cymbal m ba l

Cy

ke D ru

go

Br a

Bo n

Notation Key ‹


Level: Med-Advanced Approx. playing time: 6’40”

for Matt Keown

Constructive Interference

Alan Keown

Movement I

q=68 hard felt mallets

6> Π/ 4 ff

> > ff ff Œ

ff

Ó

ff Œ

mf

≈ fj™ f Ó f™ f

ff Œ

p

3 3 ‰ ‰ fj ‰ ‰ fj Ó f f

3

4

° / 44

7 f7 F7

° / f fj p

3 7 7 F7 f f

¢/

3

F7

j f

ff

Ó

l.v.

f f f f 45 ¿ Œ F7 - f 5 fm fm fm 4

wood sticks

3

- 3 l.v. ‹ f ¿ m‰ ‹ Œ Œ -m‰3 7 f f

5

f f f f f f ffff f

f

f

3 j 7 m  f ff f

4 -m -m F7 4 f 4f 4

f

hard felt

∑ f fj F7

5

19

°/ ‹ ¢/

f

5

f fff

3

14

°/ 7 F

F7

f F7™

F™7

f f

ff

¢/

fj

7 f7 f7

p

3

9

f f

f

F7

4Ó ¢/ 4

f 6 5 f ffffffffffff f f f

mf

¿ f f

f f f f

ææ w

© 2014 Tapspace Publications, LLC, Portland, OR. (ASCAP) International copyright secured. All rights reserved.


Constructive Interference – Keown

2

3

22

‹ ¿

°/ 3

5 f7™ f7 4 fj f

2 4

3

wood sticks

f f f f f ¢/ f

f7 f7 44 w7

F7

f f f f

f f

f

5 4

4 4

2 4

f

27

2 /4

hard felt

4 4 ff

Œ

ff

ppp

5 f f 4 f f f f 45 Ó

F7 / ¢

3

36

°/

¢/

2 4

Œ

4f 4

f

wood sticks 2 f-m -m 4 4 f 4 - mm 7 j 7 f f 4 f™ f F 2 4 4

f f f f Œ

l.v.

3

l.v.

¿‹ ¿ ‹ Œ f f p f Œ

F7

f

mp

> > > > f f f f

31

°/

ff

7¿ O¿ ‚ 7 f f

3

l.v.

f¿ ‹ f ¿ ‹ Œ f Œ

mp

f7™ fj F7

3

¿ ‹ ¿ ¿ f

f f f

> f7

f

hard felt 3

42

° / w7

l.v.

3

3

6 4 fj f f f¿ Œ

l.v.

‹ Œ

4 4

f ff Œ

4 4

‚ Œ

mp

¢/

6 4 Œ

Œ

fj

f f f Œ

p

j f

ff ff Œ

pp

Œ

pp

ff

46

/ ff ff Œ Ó

3

ff ‰ ff Œ Ó

ff ™™ ff Œ Ó

ff ff Ó

FF

FF

U ∑

4 4

niente TSPCS-61


3

Constructive Interference – Keown

Movement II q=160

° / 44

ff Ó

wood sticks

> 4> Ó ¢ / 4 ff ff ff

fff

f

¢/

5 4Œ

> ff Œ

mp

°/ Ó

> ff ff Œ

ff

> j ¿ ‰ f ¿ f

fff

fff

mp

> ¿ ‰ ¿j Œ

9

> j ¿ ‰ f ¿ f

fff

¢/

4 4

> ff ¿ Œ

f

fff

f

fff

>> ¿ ¿™ Œ

mp

>> f f ¿ ¿™ Œ

5

°/

>> 4 f f Œ ¿ ¿™ 4 Ó

5 4

5 4

f f fff

Œ

f f >f Πf

5 4

f

>

13

° / 45

>

ff ¿

5 fff ¢/ 4

‰ fj f f

mp

sf

fff

mp

sf

> ff

mp

> > ° / 44 ‹ 20

>j ‹

> f f

3 4

f

> ‹

4f ‰ f > f ff ¢ / 4 ff TSPCS-61

> j> fff ‰ ff ff ff ff

f

fff > ff

mp

3 >f f4 f

f¿ ¿

> fff ¢ / ff ff

fff

f f ‰ fj f f 44 f f

16

°/

4 4

ff ¿

f

> f f

> f f f

f

f

f ff ∑

> > fff Πff ff ff mp

fff

j f f ‰ f f mp


Constructive Interference – Keown

4

25

°/

f f f

¢/ f

f f f

f f f f

28 > °/ f f

¢/

> f f f f f f

æ æ fæ fæ ¿æ ¿æ fæ fæ f j æ f f f f ‰ f f f f

> 2 >f 5 4 f f 4 f f f f f f f f f f f 5> 2 4 4f

> ‰ fj Œ f

f

> ° / 44 ‹ 31

>j ‹

> ‹

4 ¢/ 4 f ‰ f Œ f ff

35

> ff

> ‹ f

> > > f f f f f f fffff f f f f f fffff f f f ffff mp

mf

> 3 °/ f f f f f f f f 4f f f f f f 3 4 ¢/ mp

> ff

mp

> f¿

> f¿

mf

mp

mf

> 4f 4 f > > f f f f f 4 f f f f f 4

mf

>> >> > > > 4 5 6 ff4 ff fæ æ 4 f f f f f ffff ff4 æ æ fæ fæ f 5 f f f ff ff f æ æ 4 ffff 6 f f f f 4 4 4 ¢/ 38

°/

>>>> >>>> 41 > >> > > > > ° / 46 f ¿ ¿ ¿ ¿ f ¿ ¿ ¿ ¿ 43 ff ff ff fff f f > > > >j > f f f f fff ffffffff f 6 3 ‰ f 4 4 / ¢ 6 6 > > > > > > > > 3 > > > > 3 > > ° / 43 f æ æ æ f f f f f f f f f f f f f æ f f f f f f f f R L L L L L L R R R R R L L L L L L R R R R f f f f f f f f 3 4 / ¢ R R L L R R L L 43

TSPCS-61


5

Constructive Interference – Keown

> l.v. > > > ‹ ° / 44 f f æ > > > R R f f f fæ f f æ > > > > > 4 Œ ¢/ 4 f f f f f f f

> l.v. ¿

45

L

R

R

L

R

R

> l.v. ‹

48

° / 46

> >j ‹ °/ Œ ‰ ¿ Œ 52

¢/ f

R

R

R

L

L

mp

f

mp

p

fffL

R R

R L R

‹ ¿ ‰ ‹j ¿ 4 ‹ ¿ ‰ ‹j ¿ Œ 4

57

p

5 ¢/ 4

4 4

R

61

°/

3 ‹ ¿ ‰ ¿j ¿ 4

‹ ¿ ‰ ¿j ¿

p

3 4

¢/

> æ fæ f f 45 L R L fff 5 4

L L R

∑ > > > ffffffffff f f ff ff f

L

R

L

R

L

L

. . m f fm ‰ . j . fm fm

R

L

L

R

L

R R

L

L

. . 12 m f fm ‰ . 8 jm m. f f 12 8

q. = q.

° / 12 8

∑ R

. m 12 f ™ ¢/ 8 69

> fff

f

° / 45 Ó

66

>

f

f

Ó

ff

j j ¿ ¿ ‰ ¿ ¿ ¿ ¿ ‰ ¿ ¿

Ó

Œ

f

4 ∑ ∑ ∑ 4 4 4 f f ‰ fj f f f ‰ fj f f f ‰ fj f f f f f f f f

> Ó f ff ff

6Ó ¢/ 4

L

Ó

6 4 6 4

sim.

R

. m f™

R

. m f™

R

. m f™

R

f f f f f f f f f f f f f R

R

. m f™

. m f™

f f f f f

R

R

R

R

R

R

R

R

R

R

R

RH remains at mp

LH follows dynamics

°/ f f f f f f f f f f f f f f f f f f f f f f f f f f f f f f f f f f f f f f f f f ¢/ L

mp TSPCS-61

L

L

L

L

f


Constructive Interference – Keown

6

72

°/ f f f f f f f f f f f f ffffffffffff ff fff ffffff f f f f f f f ∑ f f f f f f ¢/ mp

f

mp

f

75

°/ f f f f f f f f f f f f ff fff fffffff ff fff fffffff f f f f f f f f f f f f f f f f f / f f f f ¢ mp

f

mp

f

mp

f

78

°/ f f f f f f f f f f f f f f f f f f f fff f f f f fff f f f f f f f f ff f ff ¢/ > > 80 > > °/ f f f ff ff f f fff fff f fff fff f f ¢/ 82 >> °/ f f R

¢/

L

>> ffff

ff R

L

R

L

R

L

>> >> 9f 8 f ffff R L L L R L >> f f f f f f 9 ffff 8 ff R R

6 8

R R

L

L

R

L

R R

L

L

fæ æ fæ æ æ æ f f f f >f > f f f æ æ fæ æ fæ fæ f 6 f f f f ff 8f f R

R

L

L

R

L

R

R

L

L

> >> 4 æ æ æ f f 4 f f f f f f f f f f f f f ff f fæ fæ æ 4 fp f æ æ fæ æ fæ fæ ffff f f f 4 ¢/ f 85

°/

89

°/ > > ¢ / f f ff Ó ff

> > ff ff ff Ó

. . . . . . . . m m m m m f f f . . . . f m fm fm . . . . R R R R R m fm fm m R m fm fm m f f f f f f pp

L

L

R

R

L

L

L

R

R

L

TSPCS-61


7

Constructive Interference – Keown 3 . . . . m m m m æ f f f . . f æ æf R R R m fm fm. m. f f f f f

93

°/

> > ¢ / ff ff ff Ó

> > ff ff ff Ó

ff

L

pp

L

R

R

L

f f f

ff

> > >3 > 3 3 3 > 3 > >3 > æ æ æ 3 4 j ° / æ æ fæ f f f f ‰ f f fæ æ æ f f f 4 f f f æ æ fæ f f f æ æ fæ 4 ff ff ff ff 4 3 4 4 ¢/ 3

97

> > > ° / 44 f j f f ‰ f f 101

4 / ¢ 4

Œ

105

°/

jŒ ‰ / f f ff ¢ f f p

> >3 > j f f f f Œ

Ó

Ó >3 > > fj f f f

3

> > >3 > > ‰ fj f f f ‰ f f f Ó f f f

>j Œ ‰ ‹ 45

> > ff ff ff Ó

4 ff f ¿ ¿ f f 4

f ‰ ffj Œ ff ‰ f 45 Œ f f

æ æ fff 4ff 4 f

5 ff f 4 5 4

ff

109 >> ° / 45 ¿æ ¿æ fæ æ f >> ffff L R L f f f ffff f 5 ¢/ 4 R L R R L R R L L

4 4 > 4> 4f f f Œ

æ æ æ æ ¿æ æ ¿ f f ¿ f ¿ f f fff

112 > >9 > > >> ° / ¿æ æ æ ¿æ f f f R > >9 > >> >>>>> > f fæ fæ f f f f f f fff ff ff ff ff ff fffffffffff f ¢/ R L L R L L R L L R L L R L L R L L

TSPCS-61


Constructive Interference – Keown 115

>

°/

>

9

> > 9 > f f f f f ¢ / R fL fL R fL fL R fL fL R fL fL R fL fL

> > > f

> f

R

f f R

8

L

L

> > > > > > > > > > f f f f f f f f f f f f

117

/ fffff f fffff f fffff f fffff f fffff f fffff f pp

cresc. poco a poco to end

> > 3 ∑ 4 fffff fffff f ffffffff> > f ffffffff 3 fffff f fffff f 4 ¢/ 120

°/

123

° / 43

4 4

æ fæ fæ fæ > > > > fffff f f 3 ffffffff> > 4fffffffffffff f f f 4 ¢/ 4 > f

126

°/ > ¢/ f

> f

> f

>j ‹ > f

> f

> f

> f

f

fff

>j ‹

> l.v. ‹

f

f

Œ

TSPCS-61


www.tapspace.com

Profile for Tapspace

Constructive interference sample  

Constructive interference sample  

Profile for tapspace