pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-29939-21211_Bonny_Prince_Charlie.ps) >>/Users/jc/w/tmp/Tune-29939-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/ERM/21211_Bonny_Prince_Charlie.abc

Error exit status 256; here are some files to check:
[get.cgi V=1/1 B=0 scale=0.55 512x512 PNG]
filesizedescription
Form_29939.log 1682 Log file, useful mostly for debugging
Tune-29939-21211_Bonny_Prince_Charlie.abc 548 ABC music file with the extracted tune(s)
Tune-29939-21211_Bonny_Prince_Charlie.ps 35383 PostScript
Tune-29939-21211_Bonny_Prince_Charlie.txt 548 Plain-text file with the extracted tune(s)
Tune-29939-get.log 4752 Log file, useful mostly for debugging
These files should be available for 24 hours.