pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-55015-Santa_Lucia-C-32-5w4.ps) >>/Users/jc/w/tmp/Tune-55015-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/session/waltz/Santa_Lucia-C-32-5w4.abc

Error exit status 256; here are some files to check:
[P=get.cgi V=1/1 B=0 scale=0.65 512x512 PNG]
filesizedescription
Form_55015.log 823 Log file, useful mostly for debugging
Tune-55015-Santa_Lucia-C-32-5w4.abc 1686 ABC music file with the extracted tune(s)
Tune-55015-Santa_Lucia-C-32-5w4.ps 37284 PostScript
Tune-55015-Santa_Lucia-C-32-5w4.txt 1686 Plain-text file with the extracted tune(s)
Tune-55015-get.log 4606 Log file, useful mostly for debugging
These files should be available for 24 hours.