It has a very distinct, melancholy sound that is often accompanied by flute.

Sea birds called overhead, their cries an echoing, melancholy sound.

They always go for a kind of melancholy sound.

Their honking filled the air with a melancholy sound.

It was an eerie and melancholy sound in the frigid air.

Outside, the night wind began to creak the eaves, a melancholy sound.

Always a melancholy sound, John thought, taking a swig from his canteen.

But nothing came across the night but the melancholy sound of the wind in the trees.

He realized what he'd just said and laughed-this time it had a melancholy sound.

From high above came the reverberation of a gong: a low melancholy sound.