pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-88758-10_Bits_and_Scraps.ps) >>/Users/jc/w/tmp/Tune-88758-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/DftY/1813/Button_Whitaker/10_Bits_and_Scraps.abc

Error exit status 256; here are some files to check:
[get.cgi V=1/1 B=0 scale=0.55 512x512 PNG]
filesizedescription
Coll_88758.log 551030 Log file, useful mostly for debugging
Tune-88758-10_Bits_and_Scraps.abc 1072 ABC music file with the extracted tune(s)
Tune-88758-10_Bits_and_Scraps.ps 34336 PostScript
Tune-88758-10_Bits_and_Scraps.txt 1072 Plain-text file with the extracted tune(s)
Tune-88758-get.log 4738 Log file, useful mostly for debugging
These files should be available for 24 hours.