pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-62576-DuchessTree2.ps) >>/Users/jc/w/tmp/Tune-62576-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/Scotland/DuchessTree2.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-62576-DuchessTree2.abc 2656 ABC music file with the extracted tune(s)
Tune-62576-DuchessTree2.ps 47978 PostScript
Tune-62576-DuchessTree2.txt 2656 Plain-text file with the extracted tune(s)
Tune-62576-Pols_Rattvik3.abc 855 ABC music file with the extracted tune(s)
Tune-62576-Pols_Rattvik3.gif 0 Graphics Interchange Format, the proprietary scan-line picture format
Tune-62576-Pols_Rattvik3.ps 41910 PostScript
Tune-62576-Pols_Rattvik3.txt 855 Plain-text file with the extracted tune(s)
Tune-62576-get.log 10115 Log file, useful mostly for debugging
These files should be available for 24 hours.