1)
What are "Atzei Berushim"?
1.
Rashi: They made instruments from them.
2)
Why does it "uv'Kinoros uvi'Nvalim
1.
Radak #1: The Vov is superfluous. Atzei Berushim is the Klal (general term); "uv'Kinoros uvi'Nvalim
3)
What are "Mena'an'im"?
1.
Radak #1: It is an instrument that one who touches it, he moves his body
2.
Radak #2: It is an instrument with pegs that one moves when he plays it.
3.
Radak citing Targum Yonasan: They are thin tablets that one plays. Radak - this is Revi'is Shel Aliyas, which women who arouse lamentations play.
4)
What are "Tzeltzelim?
1.
Radak: They are cymbals.