X:0 not found in http://roaringjelly.org/~jc/music/book/BostonCollection/1450_.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 ]
filesizedescription
Tune-30306-1450_.abc 0 ABC music file with the extracted tune(s)
Tune-30306-1450_.txt 0 Plain-text file with the extracted tune(s)
Tune-30306-24CountryDances_1766.abc 156 ABC music file with the extracted tune(s)
Tune-30306-24CountryDances_1766.txt 156 Plain-text file with the extracted tune(s)
Tune-30306-get.log 6427 Log file, useful mostly for debugging
These files should be available for 24 hours.