The usual stave for writing music has 5 lines, but a 6 line 'stave' is used for guitar notation, each line representing one of the strings. (Added: I think the staves here are joined in groups of four, and there may be something written on them.)
The writing reminded me a little of the Japanese you sometimes see on multi-lingual instructions. I have no knowledge of Japanese, but a bit of research revealed two possible writing systems: hiragana, which I think is used for Japanese words, and katakana, which seems to be for transliterating foreign words. So if it's the latter, it might be a message in English disguised by the use of Japanese characters which represent the same sounds.
However, since the OP appears to have no more interest in it, I'm not particularly inclined to spend time on it, even though I am a tiny bit curious.