pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-8493-GAA_GAL.ps) >>/Users/jc/w/tmp/Tune-8493-get.log 2>&1" returned status 256
http://www.ibiblio.org/fiddlers/GAA_GAL.htm

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-8493-GAA_GAL.abc 269 ABC music file with the extracted tune(s)
Tune-8493-GAA_GAL.ps 34205 PostScript
Tune-8493-GAA_GAL.txt 269 Plain-text file with the extracted tune(s)
Tune-8493-get.log 4046 Log file, useful mostly for debugging
Tune-84933-get.log 3028 Log file, useful mostly for debugging
Tune-84938-get.log 3515 Log file, useful mostly for debugging
These files should be available for 24 hours.