X:0 not found in http://roaringjelly.org/~jc/music/abc/Contra/_4.abc

Error exit status 256; here are some files to check:

[P=tuneget V=1/1 B=0 scale=0.70 512x512 ]
filesizedescription
Tune-86267-_4.abc 0 ABC music file with the extracted tune(s)
Tune-86267-_4.txt 0 Plain-text file with the extracted tune(s)
Tune-86267-get.log 2953 Log file, useful mostly for debugging
These files should be available for 24 hours.