Hi^^

I want to know what's the title of these chunk of notes, it's popular ring tone tune but me shamefully as a classical music maniac don't know what's that

1.
Maybe not the exact tune, but it sounds like this

F#... B C# D E F#..D F#...
F#... B D B G D B ...

2. I don't know if this is a classical piece, but it sounds classical and familiar...

.BBB C'B..
.BBB C'B..
.BBB C'B.A AG.F# F#E...
.GF#E DED'. .C'BA GCB.

3.

EbD D. EbD D. EbD D. Bb.
BbA G. GF Eb. EbD C. C.

DC C. DC C. DC C. A.
AG F#... etc

thanks before