pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-99596-JigsDCB.ps) >>/Users/jc/w/tmp/Tune-99596-get.log 2>&1" returned status 256
http://dylo.pagesperso-orange.fr/abc/JigsDCB.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
Tune-99596-JigsDCB.abc 424 ABC music file with the extracted tune(s)
Tune-99596-JigsDCB.ps 38262 PostScript
Tune-99596-JigsDCB.txt 424 Plain-text file with the extracted tune(s)
Tune-99596-get.log 4227 Log file, useful mostly for debugging
These files should be available for 24 hours.