pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-40096-Bonnie_Nancy.ps) >>/Users/jc/w/tmp/Tune-40096-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/by/Phil_Cunningham/Bonnie_Nancy.abc

Error exit status 256; here are some files to check:
[P=get.cgi V=1/1 B=0 scale=0.60 512x512 PNG]
filesizedescription
Tune-40096-Bonnie_Nancy.abc 329 ABC music file with the extracted tune(s)
Tune-40096-Bonnie_Nancy.ps 34905 PostScript
Tune-40096-Bonnie_Nancy.txt 329 Plain-text file with the extracted tune(s)
Tune-40096-get.log 4346 Log file, useful mostly for debugging
These files should be available for 24 hours.