pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-9510-0588_jw.ps) >>/Users/jc/w/tmp/Tune-9510-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/oneills/1850/X/0588_jw.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_95102.log 269559 Log file, useful mostly for debugging
Form_95100.log 750 Log file, useful mostly for debugging
Tune-9510-0588_jw.abc 501 ABC music file with the extracted tune(s)
Tune-9510-0588_jw.ps 37929 PostScript
Tune-9510-0588_jw.txt 501 Plain-text file with the extracted tune(s)
Tune-9510-get.log 4125 Log file, useful mostly for debugging
Tune-95105-get.log 3116 Log file, useful mostly for debugging
Tune-95107-get.log 7790 Log file, useful mostly for debugging
Tune-95107-polka.abc 325 ABC music file with the extracted tune(s)
Tune-95107-polka.ps 33574 PostScript
Tune-95107-polka.txt 325 Plain-text file with the extracted tune(s)
These files should be available for 24 hours.