Musicologist Carl Dahlhaus describes modernism as: an obvious point of historical discontinuity ... The "breakthrough" of Mahler, Strauss, and Debussy implies a profound historical transformation ... If we were to search for a name to convey the breakaway mood of the 1890s (a mood symbolized musically by the opening bars of Strauss's "Don Juan") but without imposing a fictitious unity of style on the age, we could do worse than revert to Hermann Bahr's term "modernism" and speak of a stylistically open-ended "modernist music" extending (with some latitude) from 1890 to the beginnings of our own twentieth-century modern music in 1910.