Instrumental music, based on an extra-musical concept. The music depicts the given idea or subject in notes. A piece of music is only considered to be programmatic if the composer indicates the extra-musical idea in the title (i.e. programme). Titles added later by those other than the composer, as for instance with the Moonlight sonata (given to the piano sonata op 27 no. 2), do not fall under this definition. A good example of programme music is the Pastoral Symphony, op 68, whose individual movements are associated with scenes described by Beethoven (Awakening of cheerful feelings on approaching the countryside, Scene by the brook, Merry gathering of villagers, Thunder, storm, Shepherds song. Glad and thankful feelings after the storm.).