Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/polka/proto.abc"

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 ]
filesizedescription
Tune-9507-get.log 8019 Log file, useful mostly for debugging
Tune-9507-proto.abc 143 ABC music file with the extracted tune(s)
Tune-9507-proto.txt 143 Plain-text file with the extracted tune(s)
Tune-95070-get.log 8004 Log file, useful mostly for debugging
Tune-95071-get.log 6022 Log file, useful mostly for debugging
Tune-95077-get.log 5191 Log file, useful mostly for debugging
Tune-95079-1141_SOLDIERS_GLORY-001.svg 14202 Scalable Vector Graphics format
Tune-95079-1141_SOLDIERS_GLORY.abc 758 ABC music file with the extracted tune(s)
Tune-95079-1141_SOLDIERS_GLORY.txt 758 Plain-text file with the extracted tune(s)
Tune-95079-get.log 9764 Log file, useful mostly for debugging
These files should be available for 24 hours.