pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-39878-1176-1275_to.ps) >>/Users/jc/w/tmp/Tune-39878-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/oneills/1850/F/1176-1275_to.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
Form_39878.log 845 Log file, useful mostly for debugging
Tune-39878-1176-1275_to.abc 287 ABC music file with the extracted tune(s)
Tune-39878-1176-1275_to.ps 34637 PostScript
Tune-39878-1176-1275_to.txt 287 Plain-text file with the extracted tune(s)
Tune-39878-get.log 4361 Log file, useful mostly for debugging
These files should be available for 24 hours.