In Rachmaninoff op. 16. no. 4 there is a part in measures 15, 16 and 17 where quavers are attached to semiquavers by octaves. To voice these, they are played louder. Usually you here the top notes being played louder. However, the quaver and semiquavers change from upside to downside in treble. Is there any other reason that the upper notes are sounded louder here, because that just sounds good?
EDIT: what I mean by "change from upside.." is just that the connecting "beam", that joins quavers, semiquavers and so on, turns around. Not sure if it has any meaning, but I understood in this example that the longer notes(quavers that are part of the octave; read forward) kinda change places. Gosh it is hard to explain.
So, in the notation does the quaver symbols include the whole octave, bottom and upper notes (and thus, in principle, should the whole octave be sounded equally), or is the quavers just the upper or lower notes. If the latter, than it would figure that you would voice first the upper notes (measure 15) and then the lower notes for remaining in 16 an 17. https://www.youtube.com/watch?v=yQw3DvqEbxI
Around 0:37 seconds starts measure 15.
Hope this question makes sense, really its just nitpicking though, thanks for answering however