pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-7492-MM3-V1.ps) >>/Users/jc/w/tmp/Tune-7492-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Kerr/MM3-V1.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
Form_74924.log 880 Log file, useful mostly for debugging
Form_74925.log 822 Log file, useful mostly for debugging
Tune-7492-MM3-V1.abc 396 ABC music file with the extracted tune(s)
Tune-7492-MM3-V1.ps 34098 PostScript
Tune-7492-MM3-V1.txt 396 Plain-text file with the extracted tune(s)
Tune-7492-get.log 78657 Log file, useful mostly for debugging
These files should be available for 24 hours.