pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-68360-WellKent.ps) >>/Users/jc/w/tmp/Tune-68360-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/Scotland/WellKent.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_68360.log 1310360 Log file, useful mostly for debugging
Tune-68360-WellKent.abc 2264 ABC music file with the extracted tune(s)
Tune-68360-WellKent.ps 53800 PostScript
Tune-68360-WellKent.txt 2264 Plain-text file with the extracted tune(s)
Tune-68360-get.log 4733 Log file, useful mostly for debugging
These files should be available for 24 hours.