Identify this melody...

[musicfan82]

This is one of those familiar melodies that I've had stuck in my head for weeks, but can't for the life of me remember what it is! Mind helping out?

(Sorry for the lack of rhythmic values, but I'm fairly certain that the notes alone will be enough to identify this piece.)

A-B-C, E-D-B, A-B-C, G-F-B ... B-C-D, F-E-C, E-D-B ...

Anyone?

EDIT: Thank you, thank you! I knew it was a rather familiar piece, but I simply could not figure out what it was for the life of me! I appreciate the help! Thanks!

[mahlertitan]

This is one of those familiar melodies that I've had stuck in my head for weeks, but can't for the life of me remember what it is! Mind helping out?

(Sorry for the lack of rhythmic values, but I'm fairly certain that the notes alone will be enough to identify this piece.)

A-B-C, E-D-B, A-B-C, G-F-B ... B-C-D, F-E-C, E-D-B ...

Anyone?

why that's the third movement of Brahms's 3rd symphony

check this out:
III. Poco allegretto