Oratorio can be played everywhere ,sometimes in the theater and sometimes int the school of music...
You would often find the barrel organ being played in churches.
Marching band or orchestra
No, unless the national anthem or patriotic song is being played or it is an offensive message on the hat that people would find rude
A person can find employment being a pediatrician in a doctor's office. They can also find jobs in children's hospitals.
The place to go to find out about repossessed cars being sold is through the USA government websites. The cars are being sold at auctions and this would be where to find out.
A surround sound system is one which creates the sense that music is being played all around one. As with any other system this will needed to be tested before release to the public so you would find a test for this at the manufacturers base.
oxygen
You would find didgeridoo instruments primarily in Australia, which is the continent where they originated from. They are traditionally played by Indigenous Australians.
It's a rather classic costume, being dressed as a horse; the media, however, has probably over-played its effectiveness and frequency of use. Most, like you say, would find it hard to wear for too long.
Some pictures being formed would be like sedimatary rock and a rock that has an animal shown in it but it would be hard to find.
Up yo @$$
By being set by teachers to find out, and not being able to find it! By being set by teachers to find out, and not being able to find it!