pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-7000-Book08.ps) >>/Users/jc/w/tmp/Tune-7000-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/SCD/Book08.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-7000-Book08.abc 50620 ABC music file with the extracted tune(s)
Tune-7000-Book08.ps 504965 PostScript
Tune-7000-Book08.txt 50620 Plain-text file with the extracted tune(s)
Tune-7000-get.log 52736 Log file, useful mostly for debugging
Tune-70001-get.log 3902 Log file, useful mostly for debugging
Tune-70005-get.log 3941 Log file, useful mostly for debugging
Tune-70007-get.log 20138 Log file, useful mostly for debugging
Tune-70008-get.log 4087 Log file, useful mostly for debugging
These files should be available for 24 hours.