pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-20956-132_Broom_of_Cowden_knows.ps) >>/Users/jc/w/tmp/Tune-20956-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Barsanti/132_Broom_of_Cowden_knows.abc

Error exit status 256; here are some files to check:
[get.cgi V=1/1 B=0 scale=0.55 512x512 PNG]
filesizedescription
Coll_20956.log 465578 Log file, useful mostly for debugging
Tune-20956-132_Broom_of_Cowden_knows.abc 903 ABC music file with the extracted tune(s)
Tune-20956-132_Broom_of_Cowden_knows.ps 35519 PostScript
Tune-20956-132_Broom_of_Cowden_knows.txt 903 Plain-text file with the extracted tune(s)
Tune-20956-get.log 4776 Log file, useful mostly for debugging
These files should be available for 24 hours.