pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-67559-celtic_tunes.ps) >>/Users/jc/w/tmp/Tune-67559-get.log 2>&1" returned status 256
http://www.gulfweb.net/rlwalker/abc/celtic_tunes.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_67559.log 782 Log file, useful mostly for debugging
Tune-67559-celtic_tunes.abc 284 ABC music file with the extracted tune(s)
Tune-67559-celtic_tunes.ps 35522 PostScript
Tune-67559-celtic_tunes.txt 284 Plain-text file with the extracted tune(s)
Tune-67559-get.log 4257 Log file, useful mostly for debugging
These files should be available for 24 hours.