pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-6990-RG_ThievingJimmy.ps) >>/Users/jc/w/tmp/Tune-6990-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/england/RG_ThievingJimmy.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_69900.log 289950 Log file, useful mostly for debugging
Coll_69907.log 284330 Log file, useful mostly for debugging
Tune-6990-RG_ThievingJimmy.abc 530 ABC music file with the extracted tune(s)
Tune-6990-RG_ThievingJimmy.ps 36396 PostScript
Tune-6990-RG_ThievingJimmy.txt 530 Plain-text file with the extracted tune(s)
Tune-6990-get.log 4454 Log file, useful mostly for debugging
These files should be available for 24 hours.