Schoenberg’s chord of the 15th-Music Examples and Analysis

Hi Guys,

Today, a look at the final chord of Arnold Schoenberg’s “Sechs Kleine Klavierstucke” 2nd movement.  In thirds this reads as: C–E–G–B–D♯–F♯–A♯–Cx.

schoenberg_chord_music_analysis_extended_15th_in_music

This extended chord of a 15th, can also be viewed and heard as a bi-tonal construction of C Major 7th with Eb minorMajor 7th superimposed on top

schoenberg_chord_music_analysis_extended_15th_in_music

This can also, be thought of [especially in terms of the guitar] as an arpeggio of CMaj7 and an Arpeggio of EbmMaj7.

schoenberg_chord_music_analysis_explained_15th_in_music

Due, to the nature of its sound and collection of notes, it can produce some interesting counterpoint. Especially, as the Eb to E natural resolution creates colour and drama. [view video at top of page].

schoenberg_chord_music_analysis_extended_15th_in_music_guitar

Being, a Bi-Tonal chord it is useful as it gives us triad pairs.

schoenberg_chord_music_analysis_extended_15th_in_music_guitar

Ascending Line:

schoenberg_chord_music_analysis_chord_pairs_guitar

Now, we will take this a stage further by adding more chords/triads available.

D+ to C to EbmMaj7 to CmMaj7 to Em7 to Bmaj7

schoenberg_chord_music_analysis_chord_pairs
schoenberg_chord_music_analysis_chord_pairs

Let’s now, re voice the chord. Here we will make the chord of C a minMaj7 and add D Augmented [9th] on top.

schoenberg_chord_music_analysis_extended_15th_in_music

In the video/audio [a quick demo I created] below, we can hear the dramatic sound of this voicing in the orchestra.

Next, we have two guitar voicing’s. Firstly we have a Bsus/C [or plain B/C] as a typical McLaughlin guitar voicing.

schoenberg_chord_music_analysis_extended_15th_in_music_mclaughlin_guitar

Secondly, we have the same voicing but with a changing bass.

schoenberg_chord_music_analysis_extended_15th_in_music_guitar

Lastly, another guitar voicing that is useful for chordal picking:

schoenberg_chord_music_analysis_extended_15th_in_music_guitar

From here, we will add a partial scale descending that is formed from the chord: This chord voicing has a flattened 5th and a sharpened 9th.

schoenberg_chord_music_analysis_extended_15th_in_music_guitar

Lastly, we can create some interesting and colourful passages by exploiting the intervals inherent within this 15th chord.

schoenberg_chord_music_analysis_extended_15th_in_music_intervals
schoenberg_chord_music_analysis_extended_15th_in_music_intervals

Arnold_Schoenberg's_chord-of-the 15th_analysis_music_theory