"Ewig" which in German means "Forever" is the last word in "The Song of the Earth" in a descending major second motif, meaning of a sweet farewell sung by the contralto. The toccata is based on this interval and the contrast represented by the chromaticity minor second, in a fight already raised from the start of the piece, and which results in sections where there are more or less predominance of one of the intervals. The character indicated, "furious, barbarous" refers to "Allegro Barbaro" by Bartok, whose theme is quoted in the toccata. Between section and section, the theme of "Ewig" appears as calm between moments of sonic storm, until the climate point it appears the sweet sound of the end of "The Song of the Earth", which is interrupted again by the dazzling appearance the toccata that takes the listener to the end, where the two intervals that are struggling to overcome, always framed by the tritone, which is merely a moderator between the two involved again. The work is dedicated to Javier Herguera