pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-28746-alfjigs.ps) >>/Users/jc/w/tmp/Tune-28746-get.log 2>&1" returned status 256
http://www.alfwarnock.info/alfs/abc/alfjigs.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-28746-alfjigs.abc 301 ABC music file with the extracted tune(s)
Tune-28746-alfjigs.ps 35208 PostScript
Tune-28746-alfjigs.txt 301 Plain-text file with the extracted tune(s)
Tune-28746-get.log 4088 Log file, useful mostly for debugging
These files should be available for 24 hours.