Beyond B A C H - the Answer of Webern

The tone row of Webern's String Quartet
no copyright infringement intended
(http://en.wikipedia.org/wiki/File:Webern_String_Quartet_tone_row.png)

Three tetrachords: the B A C H motif, followed by its inversion (D♯ E C♯ D), and then by a transposition down a minor sixth (G♭ F A♭ G). If we apply an inversion to the whole row, what we get will be its retrograde (G, A♭, F, G♭, D, C♯, E, D♯, H, C, A, B). Sounds difficult? Then, listen to the music: no guts, no glory!

Anton Webern, String Quartet opus 28
Juilliard String Quartet
(video by flammesombres)

(The B A C H motif)

(Musica Nova)