pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-8237-FC.ps) >>/Users/jc/w/tmp/Tune-8237-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/OldEnglishCountryDances/FC/%1:O_The_Weary_Waters_of_Tyne.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_8237.log 133768 Log file, useful mostly for debugging
Coll_82374.log 65264 Log file, useful mostly for debugging
Tune-8237-FC.abc 390 ABC music file with the extracted tune(s)
Tune-8237-FC.ps 33959 PostScript
Tune-8237-FC.txt 390 Plain-text file with the extracted tune(s)
Tune-8237-get.log 4847 Log file, useful mostly for debugging
Tune-82375-get.log 1701 Log file, useful mostly for debugging
Tune-82377-get.log 3913 Log file, useful mostly for debugging
These files should be available for 24 hours.