/usr/share/doc/csound/examples/pfield.csd is in csound 1:5.17.6~dfsg-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 | <CsoundSynthesizer>
<CsInstruments>
instr 1
icnt pcount
print icnt
ii pindex 5
print ii
endin
</CsInstruments>
<CsScore>
i1 2 3 4 5 6 7 8 9
e
</CsScore>
</CsoundSynthesizer>
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