pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-7254-CaptainsMaggot_PLFD1698_373.ps) >>/Users/jc/w/tmp/Tune-7254-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Playford/CaptainsMaggot_PLFD1698_373.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_7254.log 286211 Log file, useful mostly for debugging
Coll_72541.log 452810 Log file, useful mostly for debugging
Find_72542.log 1506 Log file, useful mostly for debugging
Form_72546.log 1007 Log file, useful mostly for debugging
Tune-7254-CaptainsMaggot_PLFD1698_373.abc 402 ABC music file with the extracted tune(s)
Tune-7254-CaptainsMaggot_PLFD1698_373.ps 34002 PostScript
Tune-7254-CaptainsMaggot_PLFD1698_373.txt 402 Plain-text file with the extracted tune(s)
Tune-7254-get.log 4890 Log file, useful mostly for debugging
Tune-72546-get.log 9378 Log file, useful mostly for debugging
These files should be available for 24 hours.