pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-58151-BM0.ps) >>/Users/jc/w/tmp/Tune-58151-get.log 2>&1" returned status 256
http://www.mudcat.org/olson/BM0.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-58151-BM0.abc 315 ABC music file with the extracted tune(s)
Tune-58151-BM0.ps 33576 PostScript
Tune-58151-BM0.txt 315 Plain-text file with the extracted tune(s)
Tune-58151-get.log 4186 Log file, useful mostly for debugging
These files should be available for 24 hours.