pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-4863-alfjigs.ps) >>/Users/jc/w/tmp/Tune-4863-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
Coll_48638.log 132522 Log file, useful mostly for debugging
Find_4863.log 2956 Log file, useful mostly for debugging
Find_48631.log 1395 Log file, useful mostly for debugging
Form_48633.log 833 Log file, useful mostly for debugging
Tune-4863-alfjigs.abc 194 ABC music file with the extracted tune(s)
Tune-4863-alfjigs.ps 34732 PostScript
Tune-4863-alfjigs.txt 194 Plain-text file with the extracted tune(s)
Tune-4863-get.log 4200 Log file, useful mostly for debugging
Tune-48630-get.log 4083 Log file, useful mostly for debugging
Tune-48632-Chalumeau.abc 426 ABC music file with the extracted tune(s)
Tune-48632-Chalumeau.txt 426 Plain-text file with the extracted tune(s)
Tune-48632-get.log 133744 Log file, useful mostly for debugging
Tune-48635-get.log 1672 Log file, useful mostly for debugging
Tune-48637-get.log 4050 Log file, useful mostly for debugging
These files should be available for 24 hours.