pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-73887-032_Scotch_Ghost.ps) >>/Users/jc/w/tmp/Tune-73887-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/DftY/1798/Bland_Weller/032_Scotch_Ghost.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-73887-032_Scotch_Ghost.abc 675 ABC music file with the extracted tune(s)
Tune-73887-032_Scotch_Ghost.ps 33747 PostScript
Tune-73887-032_Scotch_Ghost.txt 675 Plain-text file with the extracted tune(s)
Tune-73887-get.log 6130 Log file, useful mostly for debugging
These files should be available for 24 hours.