What grade are these songs?

Question: What grade are these songs!?

Fur Elise - on piano
Nobody's Home by Avril Lavigne - on guitar
I'm With You by Avril - on guitar
If the Moon Fell Down tonight by Dear Juliet - on guitar
Fall For you by Secondhand Serenade - on piano
With the chords or tabs or keys on the actual song!?

And, I don't do grades on singing, so what would be a grade 8 song!?Www@QuestionHome@Com

Best Answer - Chosen by Asker:

fue elise is about grade 3 going on grade 4
no body's home & I'm with you is around grade 4 again I'd say!.!.!. not quite sure about that one!.
If the Moon Fell Down tonight is grade 3
Fall For you is grade 4

grade 8 singing piece well i don't know are you Soprano or alto but a nice one for soprano is the nermaid's song by Hayden and for alto would be here amid the shady woods by handel! good luck!Www@QuestionHome@Com