pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-8208-CSR1-abc2.ps) >>/Users/jc/w/tmp/Tune-8208-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Gow/CSR1-abc2.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 PNG]
filesizedescription
Tune-8208-CSR1-abc2.abc 73417 ABC music file with the extracted tune(s)
Tune-8208-CSR1-abc2.ps 898303 PostScript
Tune-8208-CSR1-abc2.txt 73417 Plain-text file with the extracted tune(s)
Tune-8208-get.log 55648 Log file, useful mostly for debugging
Tune-82084-TrialByJuryLancers_P2.abc 1516 ABC music file with the extracted tune(s)
Tune-82084-TrialByJuryLancers_P2.ps 43685 PostScript
Tune-82084-TrialByJuryLancers_P2.txt 1516 Plain-text file with the extracted tune(s)
Tune-82084-get.log 4793 Log file, useful mostly for debugging
These files should be available for 24 hours.