pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-84851-20952_My_Own_Dear_Somebody.ps) >>/Users/jc/w/tmp/Tune-84851-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/ERM/20952_My_Own_Dear_Somebody.abc

Error exit status 256; here are some files to check:
[get.cgi V=1/1 B=0 scale=0.65 512x512 PNG]
filesizedescription
Sess-84851.log 1642965 Log file, useful mostly for debugging
Tune-84851-20952_My_Own_Dear_Somebody.abc 544 ABC music file with the extracted tune(s)
Tune-84851-20952_My_Own_Dear_Somebody.ps 33868 PostScript
Tune-84851-20952_My_Own_Dear_Somebody.txt 544 Plain-text file with the extracted tune(s)
Tune-84851-get.log 4756 Log file, useful mostly for debugging
These files should be available for 24 hours.