Sonata for Two Pianos
by W. A. Mozart
Beginning of the sonata
Key	D major
Catalogue	K. 448 (375a)
Style	Classical period
Composed	1781 (1781)
Movements	Three (Allegro con spirito, Andante, Molto allegro)

The Sonata for Two Pianos in D major, K. 448 (375a), is a work composed by Wolfgang Amadeus Mozart in 1781, when he was 25. It is written in sonata-allegro form, with three movements. The sonata was composed for a performance he would give with fellow pianist Josepha Auernhammer.^[1] Mozart composed this in the galant style, with interlocking melodies and simultaneous cadences. This is one of his few compositions written for two pianos.

Description

Sonata for Two Pianos (5:54)

A recording of the first movement

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The sonata is written in three movements:

Allegro con spirito

The first movement sets the tonal center with a strong introduction. The two pianos divide the main melody for the exposition, and when the theme is presented, both play it simultaneously. Little time is spent in the development section; a new theme is introduced (unlike most sonata forms) before the recapitulation, repeating the first theme.

Andante

The second movement is written in ABA form.

Molto allegro

The third movement begins with a galloping theme. The cadences used in this movement are similar to those in Mozart's Rondo alla Turca.

Mozart effect

Mozart's K 448 was the composition used in the original study that led to the theory of the so-called Mozart effect, which posited that listening to the piano sonata improved spatial reasoning skills, later widened in pop-science to an increase in IQ in general.^[2]