pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-56469-151_Fishers_Hornpipe.ps) >>/Users/jc/w/tmp/Tune-56469-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/JohnTreat/GftF/151_Fishers_Hornpipe.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_56469.log 964 Log file, useful mostly for debugging
Tune-56469-151_Fishers_Hornpipe.abc 636 ABC music file with the extracted tune(s)
Tune-56469-151_Fishers_Hornpipe.ps 34852 PostScript
Tune-56469-151_Fishers_Hornpipe.txt 636 Plain-text file with the extracted tune(s)
Tune-56469-get.log 4747 Log file, useful mostly for debugging
These files should be available for 24 hours.