A lair is a place of refuge or resting place, and usually it is hidden.
Explanation:
The term relief refers to the horizontal and vertical dimensions of land surface, also known as terrain. Instead of emphasizing geographical boundaries of states and countries, relief maps emphasize the relative height of the land.
Do you mean which musical instrument did he play?
Beethoven played mostly the piano, but also he played violin and organ: he was considered very skillful at them already at the age of 11.
