This is n3 in the Valses sentimentales, D779 (1825). Apologies for all the boxes—the examples for D365 come from an essay of mine on the sixth scale degree, Scale Degree ^6 in the 19th Century: Ländler and Waltzes from Schubert to Herbert (link). Here the impetus to ascent is as strong as it could be. A direct resolution within V in bar 5 is followed by a remarkable "one note too far" at the end of the long ascent over the strain.
D779n3, second strain. The ^6 in bar 7 (arrow) is somewhat like the preceding—an expressive element within the V harmony—but without the dramatic emphasis, to be sure. The question marks over B5 in bars 1 and 5 indicate the uncertain status of that note: on beat 1, is it a ninth; or is it part of a complicated neighbor figure; or is it a ninth that resolves within the chord to A5 on beat 3? Any of those explanations is plausible.
D365n13:
D779n2: Once again the ninth receives attention: E5 is on the downbeat of bar 3. It resolves immediately to D5. The fourth note in the bar, another E5, is a simple escape tone.
This is the second strain of D779, n14. Despite its resolutions into the underlying V7 chord in bars 6-7, the ninth is an essential element of the sound of these two bars.
D365n2, the best known of Schubert's waltzes in the 1820s and for several decades thereafter. Similarly to the preceding examples, F5 in bars 5 and 7 resolves within the V harmony but is given strong melodic emphasis that lingers as part of the sound. The figure also mimics earlier accented notes--see the various circled notes.
D365n31. What was said just above--about lingering as part of the sound--is even more true here, where Schubert gives emphatic attention to the V9 sound in bars 2 & 6 (boxed) and also to ^6 above I in bar 4.
Post continues on Monday next week.