pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-20316-lh_jigs.ps) >>/Users/jc/w/tmp/Tune-20316-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/mirror/liamhart.org/session/tunes/lh_jigs.abc:/%17:CONNAUGHTMANSRAMBLESTHE

Error exit status 256; here are some files to check:
[P=get.cgi V=1/1 B=0 scale=0.60 512x512 PNG]
filesizedescription
Form_20316.log 840 Log file, useful mostly for debugging
Tune-20316-get.log 5295 Log file, useful mostly for debugging
Tune-20316-lh_jigs.abc 371 ABC music file with the extracted tune(s)
Tune-20316-lh_jigs.ps 35210 PostScript
Tune-20316-lh_jigs.txt 371 Plain-text file with the extracted tune(s)
These files should be available for 24 hours.