pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-25672-149_Nineteen_Birds.ps) >>/Users/jc/w/tmp/Tune-25672-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/EverydaySongBook/149_Nineteen_Birds.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-25672-149_Nineteen_Birds.abc 1091 ABC music file with the extracted tune(s)
Tune-25672-149_Nineteen_Birds.ps 34026 PostScript
Tune-25672-149_Nineteen_Birds.txt 1091 Plain-text file with the extracted tune(s)
Tune-25672-get.log 4655 Log file, useful mostly for debugging
These files should be available for 24 hours.