pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-6169-CherpingOfTheLarke.ps) >>/Users/jc/w/tmp/Tune-6169-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Playford/CherpingOfTheLarke.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-6169-CherpingOfTheLarke.abc 219 ABC music file with the extracted tune(s)
Tune-6169-CherpingOfTheLarke.ps 32038 PostScript
Tune-6169-CherpingOfTheLarke.txt 219 Plain-text file with the extracted tune(s)
Tune-6169-get.log 4646 Log file, useful mostly for debugging
Tune-61691-10372_New_Riggd_Ship.abc 601 ABC music file with the extracted tune(s)
Tune-61691-10372_New_Riggd_Ship.gif 0 Graphics Interchange Format, the proprietary scan-line picture format
Tune-61691-10372_New_Riggd_Ship.ps 33993 PostScript
Tune-61691-10372_New_Riggd_Ship.txt 601 Plain-text file with the extracted tune(s)
Tune-61691-get.log 5448 Log file, useful mostly for debugging
Tune-61692-get.log 7096 Log file, useful mostly for debugging
These files should be available for 24 hours.