pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-15894-Highland_Laddy.ps) >>/Users/jc/w/tmp/Tune-15894-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/CCD/Highland_Laddy.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-15894-Highland_Laddy.abc 1276 ABC music file with the extracted tune(s)
Tune-15894-Highland_Laddy.ps 35810 PostScript
Tune-15894-Highland_Laddy.txt 1276 Plain-text file with the extracted tune(s)
Tune-15894-get.log 4327 Log file, useful mostly for debugging
These files should be available for 24 hours.