tweedle

[tweed-l] /ˈtwid l/
verb (used without object), tweedled, tweedling.
1.
to produce high-pitched, modulated sounds, as a singer, bird, or musical instrument.
2.
to perform lightly upon a musical instrument.
verb (used with object), tweedled, tweedling.
3.
to lure by or as by music:
The Pied Piper tweedled the children into following him.
Origin
1675-85; imitative