organ

​

​

piano

 

​

144

 

 

for sustaining instruments

 

 

for one sustaining instrument

 

 

lines

 

 

for three sustaining instruments

 

 

[twelve series:

 

                    for twelve sustaining instruments

   

                    for twenty-four sustaining instruments

 

                    for forty-eight sustaining instruments

 

                    for ninety-six sustaining instruments]

 

 

for/against