pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-40874-MissAdmiralGordonsStr0.ps) >>/Users/jc/w/tmp/Tune-40874-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/Scotland/MissAdmiralGordonsStr0.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-40874-MissAdmiralGordonsStr0.abc 2736 ABC music file with the extracted tune(s)
Tune-40874-MissAdmiralGordonsStr0.ps 61455 PostScript
Tune-40874-MissAdmiralGordonsStr0.txt 2736 Plain-text file with the extracted tune(s)
Tune-40874-get.log 6929 Log file, useful mostly for debugging
These files should be available for 24 hours.