pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-15872-Merry_Cobblers.ps) >>/Users/jc/w/tmp/Tune-15872-get.log 2>&1" returned status 256
http://www.tunearch.org/wiki/Merry_Cobblers

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_15872.log 740 Log file, useful mostly for debugging
Tune-15872-Merry_Cobblers.abc 284 ABC music file with the extracted tune(s)
Tune-15872-Merry_Cobblers.ps 34540 PostScript
Tune-15872-Merry_Cobblers.txt 284 Plain-text file with the extracted tune(s)
Tune-15872-get.log 4173 Log file, useful mostly for debugging
These files should be available for 24 hours.