Mismatch: X:1 doesn't match requested X:20
X:20 not found in http://john-chambers.us/~jc/music/abc/demo/Tunes/LiltingBansheeEtAl.abc

Error exit status 256; here are some files to check:
[P=get.cgi V=1/1 B=0 scale=0.60 512x512 ]
filesizedescription
Form_44472.log 911 Log file, useful mostly for debugging
Tune-4447-LiltingBansheeEtAl.abc 0 ABC music file with the extracted tune(s)
Tune-4447-LiltingBansheeEtAl.txt 0 Plain-text file with the extracted tune(s)
Tune-4447-get.log 7508 Log file, useful mostly for debugging
Tune-44478-get.log 3467 Log file, useful mostly for debugging
These files should be available for 24 hours.