pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-16166-HopeLittlesS.ps) >>/Users/jc/w/tmp/Tune-16166-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/Scotland/HopeLittlesS.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-16166-HopeLittlesS.abc 1846 ABC music file with the extracted tune(s)
Tune-16166-HopeLittlesS.ps 52631 PostScript
Tune-16166-HopeLittlesS.txt 1846 Plain-text file with the extracted tune(s)
Tune-16166-get.log 4892 Log file, useful mostly for debugging
These files should be available for 24 hours.