pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-72643-20541_Young_May_Moon.ps) >>/Users/jc/w/tmp/Tune-72643-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/ERM/20541_Young_May_Moon.abc

Error exit status 256; here are some files to check:
[get.cgi V=1/1 B=0 scale=0.55 512x512 PNG]
filesizedescription
Tune-72643-20541_Young_May_Moon.abc 690 ABC music file with the extracted tune(s)
Tune-72643-20541_Young_May_Moon.ps 35229 PostScript
Tune-72643-20541_Young_May_Moon.txt 690 Plain-text file with the extracted tune(s)
Tune-72643-get.log 9527 Log file, useful mostly for debugging
These files should be available for 24 hours.