X:1 not found in http://www.tunearch.org/wiki/Four_and_Twenty
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-6839-Four_and_Twenty.ps) >>/Users/jc/w/tmp/Tune-6839-get.log 2>&1" returned status 256
http://www.tunearch.org/wiki/Four_and_Twenty

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_68391.log 917 Log file, useful mostly for debugging
Form_68397.log 884 Log file, useful mostly for debugging
Tune-6839-Four_and_Twenty.abc 0 ABC music file with the extracted tune(s)
Tune-6839-Four_and_Twenty.ps 6 PostScript
Tune-6839-Four_and_Twenty.txt 0 Plain-text file with the extracted tune(s)
Tune-6839-get.log 4349 Log file, useful mostly for debugging
Tune-68396-NYE_reel_AuldGreyCat.abc 402 ABC music file with the extracted tune(s)
Tune-68396-NYE_reel_AuldGreyCat.txt 402 Plain-text file with the extracted tune(s)
Tune-68396-get.log 4335 Log file, useful mostly for debugging
These files should be available for 24 hours.