pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-42888-54_RADIO_SHETLAND.ps) >>/Users/jc/w/tmp/Tune-42888-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/HaandMeDoonDaFiddle/54_RADIO_SHETLAND.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_42888.log 452809 Log file, useful mostly for debugging
Tune-42888-54_RADIO_SHETLAND.abc 653 ABC music file with the extracted tune(s)
Tune-42888-54_RADIO_SHETLAND.ps 35687 PostScript
Tune-42888-54_RADIO_SHETLAND.txt 653 Plain-text file with the extracted tune(s)
Tune-42888-get.log 12595 Log file, useful mostly for debugging
These files should be available for 24 hours.