Editing Semiotics (section)

===Introversive and extroversive semiosis in music===
Kofi Agawu<ref>Kofi Agawu, ''Playing with Signs. A Semiotic Interpretation of Classic Music'', Princeton University Press, 1991, p. 23.</ref> quotes the distinction made by Roman Jakobson<ref>Roman Jakobson, "Language in Relation to Other Semiotic Systems", ''Selected Writings'' II, ''Word and Language'', The Hague, Mouton, (pp. 697-708) p. 704.</ref> between "introversive semiosis, a language which signifies itself," and extoversive semiosis, the referential component of the semiosis. Jakobson writes that introversive semiosis "is indissolubly linked with the esthetic function of sign systems and dominates not only music but also glossolalic poetry and nonrepresentational painting and sculpture",<ref>Jakobson,"Language in Relation to Other Semiotic Systems", op. cit., pp. 704-705.</ref> but Agawu uses the distinction mainly in music, proposing Schenkerian analysis as a path to introversive semiosis and topic theory as an example of extroversive semiosis. Jean-Jacques Nattiez makes the same distinction: "Roman Jakobson sees in music a semiotic system in which the 'introversive semiosis' – that is, the reference of each sonic element to the other elements to come — predominates over the 'extroversive semiosis' – or the referential link with the exterior world."<ref>Jean-Jacques Nattiez, "The Contribution of Musical Semiotics to the Semiotic Discussion in General", ''A Perfusion of Signs'', Th. A. Sebeok ed., Indiana University Press, 1977, p. 125.</ref>