Sambucus is a member of the caprifoliaceae.
The berries, flowers, and medicinal parts of the plant aren't its only uses; it has been used to make wind instruments such as the Fujara and in America these Anasazi Flutes were found. The article says that the flutes are made of Box Elder but this is clearly erroneous from the reference to the soft pith.
Bagpipe Drone and Chanter reeds used to be made of Elder and some people (myself included) are starting to use the material again.
Elder Uillean Pipe Drone Reeds
and another
I shall be harvesting some Elder wood this winter, as the plant is very common here in Manchester on "Brownfield" sites in urban areas.

TTFN
PP