Assertion: birdcall | /r/CapableOf | permeate the bass instruments
Facets:
value: gradually
type: MANNER
Source sentences:
text: , it begins with a slow, lyrical melody featuring clarinet, horn, and strings; the second section begins with a birdcall-like unaccompanied oboe phrase in alternation with a new lyrical melody in the strings; the birdcall gradually permeates the full orchestral texture, including the bass instruments, and eventually the first melody returns in counterpoint with the birdcall figure.