Popular music (Billboard hits) are not a good example of musical nationalism.
yes
Adolf Hitler is a negative example of nationalism.
Many of our astronauts have lost their faith in nationalism.
yes
nationalism.
A composition of musical style would be Structural Music. An example of this would be any classical music, especially by Bach. Another composition of musical style is Easy Listening Music. An example of this would be a pop song, Taylor Swift songs would be a good example.
putos
yes
People who hate the government and that have no patriotic feeling
The rise to power of Adolf Hitler in Germany, and the second World War, is an example of the dark side of nationalism.
It really depends on the musical, or setting of the musical. For example, if the musical took place at a festival in mideval times, a good costume could be a jester. A jester coustume should include many different colors and patterns. Or perhaps the musical took place on a bus or subway; A character in a show like that would probably wear everyday clothes unless they were a psychopath or something.
It is good for one to take pride in his/her country but nationalism is bad in the fact that it can lead to world wars and authoritarian government.