The final bar of the introduction of Schumann's grand sonata op. 11 in F# minor has a
pp stacked below the two final whole notes in the bass stave:
How should this dynamic indication be interpreted with respect to the final two-lined C# in the treble stave? Should the C# in the treble inherit the fortissimo from the previous treble notes or should the C# also be played pianissimo? I think it would be obvious that it should be pianissimo if the
pp had been put between the staves as for the previous
ff sign, but since the
pp is put below the bass stave, it makes me more unsure.