pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-8135-Cotillons.ps) >>/Users/jc/w/tmp/Tune-8135-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/DftY/1770/Longman_Cotillons/Cotillons.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_81350.log 70113 Log file, useful mostly for debugging
Coll_81353.log 0 Log file, useful mostly for debugging
Coll_81356.log 0 Log file, useful mostly for debugging
Tune-8135-Cotillons.abc 0 ABC music file with the extracted tune(s)
Tune-8135-Cotillons.ps 0 PostScript
Tune-8135-get.log 0 Log file, useful mostly for debugging
Tune-81350-get.log 4024 Log file, useful mostly for debugging
Tune-81355-get.log 2903 Log file, useful mostly for debugging
These files should be available for 24 hours.