pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-7358-hnsj0.ps) >>/Users/jc/w/tmp/Tune-7358-get.log 2>&1" returned status 256
http://jjaquier.free.fr/midifiles/abc/hnsj0.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_73580.log 259149 Log file, useful mostly for debugging
Form_73583.log 1669 Log file, useful mostly for debugging
Form_73589.log 853 Log file, useful mostly for debugging
Tune-7358-get.log 4168 Log file, useful mostly for debugging
Tune-7358-hnsj0.abc 237 ABC music file with the extracted tune(s)
Tune-7358-hnsj0.ps 34279 PostScript
Tune-7358-hnsj0.txt 237 Plain-text file with the extracted tune(s)
Tune-73587-get.log 5861 Log file, useful mostly for debugging
Tune-73589-get.log 3639 Log file, useful mostly for debugging
These files should be available for 24 hours.