X:0 not found in http://roaringjelly.org/~jc/music/book/Kohlers/21000_.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 ]
filesizedescription
Form_30124.log 1946 Log file, useful mostly for debugging
Tune-30124-21000_.abc 0 ABC music file with the extracted tune(s)
Tune-30124-21000_.txt 0 Plain-text file with the extracted tune(s)
Tune-30124-get.log 3035 Log file, useful mostly for debugging
These files should be available for 24 hours.