pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-1178-ValentinesDay.ps) >>/Users/jc/w/tmp/Tune-1178-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/England/ValentinesDay.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_1178.log 294165 Log file, useful mostly for debugging
Coll_11789.log 558825 Log file, useful mostly for debugging
Tune-1178-ValentinesDay.abc 927 ABC music file with the extracted tune(s)
Tune-1178-ValentinesDay.ps 40743 PostScript
Tune-1178-ValentinesDay.txt 927 Plain-text file with the extracted tune(s)
Tune-1178-get.log 4425 Log file, useful mostly for debugging
Tune-11785-get.log 1462 Log file, useful mostly for debugging
Tune-11787-PeterWhite.abc 2906 ABC music file with the extracted tune(s)
Tune-11787-PeterWhite.pdf 64365 Portable Data Format
Tune-11787-PeterWhite.ps 60426 PostScript
Tune-11787-PeterWhite.txt 2906 Plain-text file with the extracted tune(s)
Tune-11787-get.log 5653 Log file, useful mostly for debugging
These files should be available for 24 hours.