pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-17128-047_Jefferson_and_Liberty.ps) >>/Users/jc/w/tmp/Tune-17128-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/mirror/fifedrum.org/047_Jefferson_and_Liberty.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-17128-047_Jefferson_and_Liberty.abc 281 ABC music file with the extracted tune(s)
Tune-17128-047_Jefferson_and_Liberty.ps 34077 PostScript
Tune-17128-047_Jefferson_and_Liberty.txt 281 Plain-text file with the extracted tune(s)
Tune-17128-get.log 4738 Log file, useful mostly for debugging
These files should be available for 24 hours.