pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-90885-LullMeBeyondThee.ps) >>/Users/jc/w/tmp/Tune-90885-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Playford/LullMeBeyondThee.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-90885-051_Bumpers_Squire_Jones.abc 862 ABC music file with the extracted tune(s)
Tune-90885-051_Bumpers_Squire_Jones.ps 38032 PostScript
Tune-90885-051_Bumpers_Squire_Jones.txt 862 Plain-text file with the extracted tune(s)
Tune-90885-LullMeBeyondThee.abc 309 ABC music file with the extracted tune(s)
Tune-90885-LullMeBeyondThee.ps 33794 PostScript
Tune-90885-LullMeBeyondThee.txt 309 Plain-text file with the extracted tune(s)
Tune-90885-get.log 9417 Log file, useful mostly for debugging
These files should be available for 24 hours.