pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-14830-___.ps) >>/Users/jc/w/tmp/Tune-14830-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/session/waltz/Waltz:Boda_valsen-Em_G-64-3.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
Tune-14830-___.abc 533 ABC music file with the extracted tune(s)
Tune-14830-___.ps 34721 PostScript
Tune-14830-___.txt 533 Plain-text file with the extracted tune(s)
Tune-14830-get.log 4408 Log file, useful mostly for debugging
These files should be available for 24 hours.