pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-33526-047.ps) >>/Users/jc/w/tmp/Tune-33526-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/EverydaySongBook/047=Hay-Making_Song-V2.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-33526-047.abc 1484 ABC music file with the extracted tune(s)
Tune-33526-047.ps 35903 PostScript
Tune-33526-047.txt 1484 Plain-text file with the extracted tune(s)
Tune-33526-get.log 4606 Log file, useful mostly for debugging
These files should be available for 24 hours.