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

[get.cgi V=1/1 B=0 scale=0.65 512x512 ]
filesizedescription
Tune-66905-21271_.abc 50 ABC music file with the extracted tune(s)
Tune-66905-21271_.txt 50 Plain-text file with the extracted tune(s)
Tune-66905-get.log 6507 Log file, useful mostly for debugging
These files should be available for 24 hours.