pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-61837-MM2-V1.ps) >>/Users/jc/w/tmp/Tune-61837-get.log 2>&1" returned status 256
http://www.gulfweb.net/rlwalker/abc/MM2-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
Tune-61837-MM2-V1.abc 513 ABC music file with the extracted tune(s)
Tune-61837-MM2-V1.ps 36362 PostScript
Tune-61837-MM2-V1.txt 513 Plain-text file with the extracted tune(s)
Tune-61837-get.log 4175 Log file, useful mostly for debugging
These files should be available for 24 hours.