useless trivia: What Word Means: A Riverbank - A Scar?

Questions

Which century did Johann Sebastian Bach die in ?

What does the term "equal temperament" describe ?

How many symphonies did Beethoven write{Beethoven was born in Bonn, Germany in 1770. He died inVienna, Austria in 1827.} ?

Which composer sent a lock of goat's hair to an ardent admirer ?

What does the term appoggiatura mean ?