pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-3657-JennyPluckPears_PLFD1651_047.ps) >>/Users/jc/w/tmp/Tune-3657-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Playford/JennyPluckPears_PLFD1651_047.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_36579.log 265209 Log file, useful mostly for debugging
Tune-3657-JennyPluckPears_PLFD1651_047.abc 446 ABC music file with the extracted tune(s)
Tune-3657-JennyPluckPears_PLFD1651_047.ps 32906 PostScript
Tune-3657-JennyPluckPears_PLFD1651_047.txt 446 Plain-text file with the extracted tune(s)
Tune-3657-get.log 4916 Log file, useful mostly for debugging
Tune-36575-get.log 1382 Log file, useful mostly for debugging
Tune-36577-get.log 6610 Log file, useful mostly for debugging
These files should be available for 24 hours.