pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-27735-Alltshellach.ps) >>/Users/jc/w/tmp/Tune-27735-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/Scotland/Alltshellach.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
Coll_27735.log 63644 Log file, useful mostly for debugging
Form_27735.log 732 Log file, useful mostly for debugging
Tune-27735-Alltshellach.abc 520 ABC music file with the extracted tune(s)
Tune-27735-Alltshellach.ps 40092 PostScript
Tune-27735-Alltshellach.txt 520 Plain-text file with the extracted tune(s)
Tune-27735-get.log 4277 Log file, useful mostly for debugging
These files should be available for 24 hours.