"Music, When Soft Voices Die" is a poem by Percy Shelley. Here's the full text of Shelley's work of poetry.
Music, When Soft Voices Die
Music, when soft voices die,
Vibrates in the memory--
Odours, when sweet violets sicken,
Live within the sense they quicken.
Rose leaves, when the rose is dead,
Are heap'd for the beloved's bed;
And so thy thoughts when thou are gone,
Love itself shall slumber on.

