pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-3887-Vals14.ps) >>/Users/jc/w/tmp/Tune-3887-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/session/waltz/Vals14.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
Coll_38875.log 130707 Log file, useful mostly for debugging
Form_38872.log 845 Log file, useful mostly for debugging
Tune-3887-Vals14.abc 2429 ABC music file with the extracted tune(s)
Tune-3887-Vals14.ps 49146 PostScript
Tune-3887-Vals14.txt 2429 Plain-text file with the extracted tune(s)
Tune-3887-get.log 97196 Log file, useful mostly for debugging
Tune-38874-get.log 1675 Log file, useful mostly for debugging
Tune-38878-get.log 3878 Log file, useful mostly for debugging
These files should be available for 24 hours.