pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-91217-alltunes.ps) >>/Users/jc/w/tmp/Tune-91217-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/JeanWhite/100_Popular_HRJCD/alltunes.abc

Error exit status 256; here are some files to check:
[P=get.cgi V=1/1 B=0 scale=0.60 512x512 PNG]
filesizedescription
Tune-91217-alltunes.abc 755 ABC music file with the extracted tune(s)
Tune-91217-alltunes.ps 37445 PostScript
Tune-91217-alltunes.txt 755 Plain-text file with the extracted tune(s)
Tune-91217-get.log 20355 Log file, useful mostly for debugging
These files should be available for 24 hours.