A whistle may be a sort of flute, a referee’s signal or a noise made through pursed lips. Some whistlers hardly seem to know they are whistling. One I know found it impossible to whistle in the rarefied atmosphere of the Alps. Is this usual?
Woodwind instruments make up one section in an orchestra, the entire wind section also includes the brass instruments.
A washboard may be used in a jazz ensemble. It is an example of how people make music with anything they can lay their hands on! Originally used for scrubbing clothes, it is played with metal thimbles on the player’s fingers.
Wurlitzer was a manufacturer of musical instruments. The name is particularly associated with organs. If you click on the link, the full range of artefacts made will appear as if you had waved a magic wand!
I found woodblocks in another A to Zer’s G post. They are percussion instruments.
The magic wand of the orchestra is the conductor’s baton, which I might have included earlier, but my posts for B and C were long enough for me. The reason a baton is used is that it extends the reach of the conductor and emphasises the movements of his hand. I am aware of two ways in which a baton may cause problems. The first is that the conductor might accidentally let go of it and it could fly off in the direction it was travelling at the moment of release. The second is that he conductor could hit it so hard on his music stand that it snapped. Both are operator error – the baton would not be to blame!