pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-2963-Widows_Daughter-Em-8-1.ps) >>/Users/jc/w/tmp/Tune-2963-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/ONeills/air/Widows_Daughter-Em-8-1.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_29639.log 313084 Log file, useful mostly for debugging
Form_29635.log 806 Log file, useful mostly for debugging
Tune-2963-Widows_Daughter-Em-8-1.abc 385 ABC music file with the extracted tune(s)
Tune-2963-Widows_Daughter-Em-8-1.ps 33719 PostScript
Tune-2963-Widows_Daughter-Em-8-1.txt 385 Plain-text file with the extracted tune(s)
Tune-2963-get.log 4752 Log file, useful mostly for debugging
Tune-29633-get.log 4373 Log file, useful mostly for debugging
Tune-29634-get.log 4615 Log file, useful mostly for debugging
Tune-29635-get.log 9106 Log file, useful mostly for debugging
Tune-29638-get.log 4237 Log file, useful mostly for debugging
These files should be available for 24 hours.