pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-5467-REELSDCB.ps) >>/Users/jc/w/tmp/Tune-5467-get.log 2>&1" returned status 256
http://dylo.pagesperso-orange.fr/abc/REELSDCB.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_54671.log 65534 Log file, useful mostly for debugging
Coll_54674.log 0 Log file, useful mostly for debugging
Form_54672.log 736 Log file, useful mostly for debugging
Form_54673.log 742 Log file, useful mostly for debugging
Form_54674.log 748 Log file, useful mostly for debugging
Tune-5467-REELSDCB.abc 500 ABC music file with the extracted tune(s)
Tune-5467-REELSDCB.ps 38358 PostScript
Tune-5467-REELSDCB.txt 500 Plain-text file with the extracted tune(s)
Tune-5467-get.log 4153 Log file, useful mostly for debugging
Tune-54670-get.log 2928 Log file, useful mostly for debugging
Tune-54672-get.log 12997 Log file, useful mostly for debugging
Tune-54673-get.log 5820 Log file, useful mostly for debugging
Tune-54675-get.log 0 Log file, useful mostly for debugging
These files should be available for 24 hours.