degree, if it is kept in mind that the intellectual participation and sympathy of the interlocutors, although not necessarily languishing in conversation, are only audibly expressed by turns, whereas the musical embodiment of ideas must be continuous and simultaneous. The comparison is intended to illustrate the essential point that every component part of the quartet stands out independently, according to its character, but so diffidently that all co-operate to produce a whole which is never at any moment out of view; an effect so massive as to absorb altogether the individual parts would be as much out of place as the undue emphasising of any one part and the subordination of the others to it. The object to be kept continually in view is the blending of the homophonie or melodious, and the polyphonic or formal elements of composition to form a new and living creation. Neither is neglected; but neither is allowed to assert itself too prominently. Even when a melody is delivered by one instrument alone, the others do not readily confine themselves to a merely harmonic accompaniment, but preserve their independence of movement. Infallible signs of a master-hand are visible in the free and ingenious adaptation of the bass and the middle parts to the melodies; and, as a rule, the characteristic disposition of the parts gives occasion for a host of interesting harmonic details. The severer forms of counterpoint only appear in exceptional cases, such as the last movement of the first quartet, in G major (387 K.). The intention is not to work out a subject in a given form, but to play freely with it, presenting it from various interesting points of view by means of combinations, analysis, construction, and connection with fresh contrasting elements. But since this free play can only be accepted as artistic by virtue of the internal coherency of its component parts, it follows that the same laws which govern strict forms must lie at the root of the freer construction. In the same way a conversation--even though severe logical disputation may be studiously avoided--adheres to the laws of logic while letting fall here a main proposition, there a subordinate idea, and connecting apparent incongruities by means of association of ideas. A similar freedom in the grouping and {MOZART'S INSTRUMENTAL MUSIC.} (10) development of the different subjects exists in the quartet, limited only by the unity of artistic conception, and by the main principles of rhythmic and harmonic structure, and of the forms of counterpoint. This is most observable when an apparently unimportant phrase is taken up, and by its interesting development formed into an essential element of the whole, as in the first movement of the third quartet, in B flat major (458 K.), where a figure--[See Page Image]