pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-1020-celtic_tunes.ps) >>/Users/jc/w/tmp/Tune-1020-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
Coll_10201.log 254269 Log file, useful mostly for debugging
Form_1020.log 775 Log file, useful mostly for debugging
Tune-1020-celtic_tunes.abc 360 ABC music file with the extracted tune(s)
Tune-1020-celtic_tunes.ps 36626 PostScript
Tune-1020-celtic_tunes.txt 360 Plain-text file with the extracted tune(s)
Tune-1020-get.log 4276 Log file, useful mostly for debugging
These files should be available for 24 hours.