pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-29273-04_CupidsFrolick.ps) >>/Users/jc/w/tmp/Tune-29273-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/DftY/1771/Randall/04_CupidsFrolick.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-29273-04_CupidsFrolick.abc 616 ABC music file with the extracted tune(s)
Tune-29273-04_CupidsFrolick.ps 33348 PostScript
Tune-29273-04_CupidsFrolick.txt 616 Plain-text file with the extracted tune(s)
Tune-29273-get.log 4859 Log file, useful mostly for debugging
These files should be available for 24 hours.