pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-4827-191_MrRobertHuntersStrathspey.ps) >>/Users/jc/w/tmp/Tune-4827-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Pringle/191_MrRobertHuntersStrathspey.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_48277.log 462610 Log file, useful mostly for debugging
Tune-4827-191_MrRobertHuntersStrathspey.abc 588 ABC music file with the extracted tune(s)
Tune-4827-191_MrRobertHuntersStrathspey.ps 35309 PostScript
Tune-4827-191_MrRobertHuntersStrathspey.txt 588 Plain-text file with the extracted tune(s)
Tune-4827-get.log 4912 Log file, useful mostly for debugging
Tune-48278-get.log 14554 Log file, useful mostly for debugging
Tune-48279-get.log 7249 Log file, useful mostly for debugging
These files should be available for 24 hours.