pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-78173-031_Prince_Albert.ps) >>/Users/jc/w/tmp/Tune-78173-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/JeanWhite/100_Popular_HRJCD/031_Prince_Albert.abc

Error exit status 256; here are some files to check:
[get.cgi V=1/1 B=0 scale=0.55 512x512 PNG]
filesizedescription
Coll_78173.log 263256 Log file, useful mostly for debugging
Form_78173.log 828 Log file, useful mostly for debugging
Tune-78173-031_Prince_Albert.abc 712 ABC music file with the extracted tune(s)
Tune-78173-031_Prince_Albert.ps 35738 PostScript
Tune-78173-031_Prince_Albert.txt 712 Plain-text file with the extracted tune(s)
Tune-78173-get.log 4724 Log file, useful mostly for debugging
These files should be available for 24 hours.