pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-7700-SicilianCircle0.ps) >>/Users/jc/w/tmp/Tune-7700-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/england/SicilianCircle0.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 PNG]
filesizedescription
Coll_77007.log 282925 Log file, useful mostly for debugging
Coll_77009.log 287140 Log file, useful mostly for debugging
Tune-7700-SicilianCircle0.abc 3910 ABC music file with the extracted tune(s)
Tune-7700-SicilianCircle0.ps 67310 PostScript
Tune-7700-SicilianCircle0.txt 3910 Plain-text file with the extracted tune(s)
Tune-7700-get.log 4549 Log file, useful mostly for debugging
Tune-77005-get.log 1433 Log file, useful mostly for debugging
These files should be available for 24 hours.