This is a cloudy issue. People live longer now. As a composer I want to see the benefits of my work help my heirs as well as the public. Consider:
"These are the Clouds
William Butler Yeats
                                                
These are the clouds about the fallen sun,
The majesty that shuts his burning eye:
The weak lay hand on what the strong has done,
Till that be tumbled that was lifted high
And discord follow upon unison,
And all things at one common level lie.
And therefore, friend, if your great race were run
And these things came, so much the more thereby
Have you made greatness your companion,
Although it be for children that you sigh:
These are the clouds about the fallen sun,
The majesty that shuts his burning eye."

By quoting these words and giving due credit am I protected or am I violating copyright?

Doug Saum