Anna Korsun
Pulsar for organ and soprano
Bamberg, April 2014
2 Annotation
Organ: Instrument should have mechanical type of action and slider chest (type of register controllers). This system gives possibility of partial opening of stops (register controller), which causes changes of sound, including pitch. In the score is given approximate description of desired sound. It is necessary to work on selection of stops on certain instrument, as well as position of stop: they always to be opened partially - approximately on 1/2, 2/3 of its part only (no full opened stop should be used in the piece). The result is detuned sound. While opening it is necessary to avoid sharp attack of sound. Author can provide performers with already existed recording of the piece, which can be orienting point during process of preparation. The score is written in real sounding (taking in consideration unison stops). Microtonal pitch changes are not notated, since the changes will be every time different, according to certain instrument. Rhythmical notation is schematic and can be interpreted more or less free.
example of organ with mechanical type of action and slider chest
Soprano: Range d2 - d3 The voice in this piece is an prolongation of organ, which creates additional beatings. It must be percepted like illusion. That it why voice should be not treated as soloist.
Assistant: It is necessary to have assistant, who will care about changes of stops.
3
Pulsar Anna Korsun
q = 38 a little bit detuned unison timbre for each manual, for example flute. It is necessary to reach about 1/4 tone difference in pitch between two manuals due to selection of stops' positions
II Organ
I
two unison stops with a difference in about 1/4 tone in pitch between each other, not low register
Pedals
3
Org.
Org.
Org.
5
7
4
9
Org.
10
Org.
13
Org.
Org.
15
18
Org.
22
Org.
25
Org.
Org.
l.h.
r.h.
27
20
Org.
3
5
6 5 4 3
31
Org.
34
3
r.h.
5
l.h. Org.
r.h.
38
Org.
40
Org.
3
3
3
7 43
V.
Org.
p
a
r.h. 45
V.
V.
5
Org.
maumaumaum (etc.)
Org.
48
very slowly alternations of vowels
8 51
V.
very slowly alternations of vowels
amuamuam (etc.)
Org.
l.h.
53
V.
r.h.
Org.
56
V.
r.h.
Org.
9 60
V.
mf
mam
Org.
r.h.
64
l.h.
r.h.
Org.
68
Org.
Ped.
10
71
Org.
Ped.
during selected fragment gradually open (up to appearing of sound) four stops (two stops on each manual), which will give soft timbre vibrations; mutation stops are possible, for example +3, + 8)
75
Org.
Ped.
11
79
close one of mutation stops
Org.
Ped.
q = 20
q = 38 rubato the repeat schould be a little bit more expressive, a little bit louder and schould have tempo deviations, it is possible to use more vowels
82
V.
p
Ped.
maumaum (etc.)
leave unison stops and smoothly close the rest
Org.
pitch deviations within half tone up and down make little dynamical deviations
a
Performer plays with stop: the line indicates smoothly sliding of stop within
12
90
V.
mp
mf
Org.
Ped.
94
V.
smoothly open three different not very sharp timbre stops on the second manual
Org.
Ped.
make rhytmical changing of one stop on the second manual similiar to old train horn
smoothly open one soft bass stop
13
97
V.
a
during selected play with different not very sharp timbre stops on both manuals: smoothly slide, opening and closing them
Org.
Ped.
100
V.
Org.
Ped.
f
legato short gliss.
14 103
V.
Org.
Ped.
Ped.
Org.
open sub bass stop
ff
106
V.
open very high register close high register stop stop (additionaly to already opened other stops)
5
5
smoothly close sub bass
15
110
Org.
Ped.
during selected fragment smoothly close all stops except one soft timbre unison stop for each manual
smoothly close sub bass
during selected fragment smoothly open the highest register stops for both manuals and close others
113
Org.
Ped.
116
Org.
16
119
Org.
122
123
whisper-tone until the end ff
125
V.
Org.
Org.
ts
Org.
3
17
127
V.
ts
Org.
129
V.
ts
Org.
Org.
131
V.
ts
3
18 133
V.
rit.
f
ts
Org.
q = 30 135
V.
Org.
ff
ts
ts