pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-45929-20802_My_Friend_and_Pitcher.ps) >>/Users/jc/w/tmp/Tune-45929-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/ERM/20802_My_Friend_and_Pitcher.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-45929-20802_My_Friend_and_Pitcher.abc 516 ABC music file with the extracted tune(s)
Tune-45929-20802_My_Friend_and_Pitcher.ps 34027 PostScript
Tune-45929-20802_My_Friend_and_Pitcher.txt 516 Plain-text file with the extracted tune(s)
Tune-45929-get.log 4781 Log file, useful mostly for debugging
These files should be available for 24 hours.