in some sections, it sounds clearly like there is some background sound effect, as if whistling, or something? Can anybody explain to me what this is?
The score requires the pianist to whistle, slam the piano lid, etc., yes.
*** wonders how long it will be before some composer expects us to dance and/or tells us what to wear.
slam the piano lid, etc., yes.
The score requires the pianist to whistle, slam the piano lid, etc., yes.Paul