Fausto Petrella invites the reader to explore themes, areas and metaphors that psychoanalysis and music have in common: interpretation, improvisation, forms of listening, the use of instruments, the ways in which music speaks of affections that are typically mobilized in depression and nostalgia, but also in laughter, in joy and in euphoria, with the fading of the most varied emotions, their continuous metamorphosis and conflictual opposition.