pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-7609-911_Keppels_Delight.ps) >>/Users/jc/w/tmp/Tune-7609-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/DftY/1780/Thompson/911_Keppels_Delight.abc

Error exit status 256; here are some files to check:
[get.cgi V=1/1 B=0 scale=0.55 512x512 PNG]
filesizedescription
Coll_76090.log 282925 Log file, useful mostly for debugging
Tune-7609-911_Keppels_Delight.abc 982 ABC music file with the extracted tune(s)
Tune-7609-911_Keppels_Delight.ps 34729 PostScript
Tune-7609-911_Keppels_Delight.txt 982 Plain-text file with the extracted tune(s)
Tune-7609-get.log 8329 Log file, useful mostly for debugging
Tune-76091-get.log 4072 Log file, useful mostly for debugging
Tune-76096-get.log 6296 Log file, useful mostly for debugging
Tune-76098-get.log 4878 Log file, useful mostly for debugging
These files should be available for 24 hours.