The song swelled and filled the Square.

The song swelled again with a different melody and a ,different counterpoint.

The song swelled, and it echoed back from nearby mountains.

In him there was only song, endlessly swelling.

For a moment it nonplussed me... then the song swelled in my head.

In the final scene, when everything looks so superficially rosy, the song swells back in again, modulated and modified by all that's gone before.

Now, more beautiful than he remembered, the song swelled, in a long flood of melody shimmering brighter than the moonbeams.

The song swells across the universe.

The song swelled louder with every word.

Their voices joined it and the strange song swelled.