pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-7408-LadyBanburysHornpipe_PLFD1657_124.ps) >>/Users/jc/w/tmp/Tune-7408-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Playford/LadyBanburysHornpipe_PLFD1657_124.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_74083.log 2287295 Log file, useful mostly for debugging
Tune-7408-LadyBanburysHornpipe_PLFD1657_124.abc 393 ABC music file with the extracted tune(s)
Tune-7408-LadyBanburysHornpipe_PLFD1657_124.ps 33463 PostScript
Tune-7408-LadyBanburysHornpipe_PLFD1657_124.txt 393 Plain-text file with the extracted tune(s)
Tune-7408-get.log 5055 Log file, useful mostly for debugging
Tune-74089-1792_Thompson_24.abc 11842 ABC music file with the extracted tune(s)
Tune-74089-1792_Thompson_24.pdf 219498 Portable Data Format
Tune-74089-1792_Thompson_24.ps 141479 PostScript
Tune-74089-1792_Thompson_24.txt 11842 Plain-text file with the extracted tune(s)
Tune-74089-get.log 22204 Log file, useful mostly for debugging
These files should be available for 24 hours.