Chapter XV: Part I: are to be counted as the same measure, and not separately;

they are both measure 8):--Part I extends to the double-bar, and is repeated literally, only excepting the _rhythmic_ modification of the final measure; Part II extends from measure 9 to 23; Part III, measures 24-35; Part IV, measures 36-47; Part V, measures 48-60; coda to the end. The comparison of Part IV with Part II discloses both agreement and diversity; they are, obviously, _practically the same Part_, but differ in key, in form, and in extent. The comparison of Parts I, III, and V reveals a similar condition, though the agreement here is much closer, and each confirms the leading statement.

A more characteristic example will be found in the familiar F major _Nachtstück_ of Schumann, op. 23, No. 4, which see:--Part I extends from measure 2 to 9 (after 1 1/2 measures of recitative introduction);