pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-27603-Brass_Nuts.ps) >>/Users/jc/w/tmp/Tune-27603-get.log 2>&1" returned status 256
http://tunearch.org/wiki/Brass_Nuts

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-27603-Brass_Nuts.abc 326 ABC music file with the extracted tune(s)
Tune-27603-Brass_Nuts.ps 37523 PostScript
Tune-27603-Brass_Nuts.txt 326 Plain-text file with the extracted tune(s)
Tune-27603-get.log 4115 Log file, useful mostly for debugging
These files should be available for 24 hours.