pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-23330-Jamaica_PLFD1670_200.ps) >>/Users/jc/w/tmp/Tune-23330-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Playford/Jamaica_PLFD1670_200.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-23330-1062.abc 1156 ABC music file with the extracted tune(s)
Tune-23330-1062.ps 39061 PostScript
Tune-23330-1062.txt 1156 Plain-text file with the extracted tune(s)
Tune-23330-Jamaica_PLFD1670_200.abc 375 ABC music file with the extracted tune(s)
Tune-23330-Jamaica_PLFD1670_200.ps 32631 PostScript
Tune-23330-Jamaica_PLFD1670_200.txt 375 Plain-text file with the extracted tune(s)
Tune-23330-get.log 9464 Log file, useful mostly for debugging
These files should be available for 24 hours.