pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-66898-shottish_Dm.ps) >>/Users/jc/w/tmp/Tune-66898-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/Finland/shottish_Dm.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-66898-get.log 18919 Log file, useful mostly for debugging
Tune-66898-shottish_Dm.abc 8730 ABC music file with the extracted tune(s)
Tune-66898-shottish_Dm.ps 112425 PostScript
Tune-66898-shottish_Dm.txt 8730 Plain-text file with the extracted tune(s)
These files should be available for 24 hours.