In this task, you are given a question and a context passage. You have to answer the question based on the given passage.
Q: When did bass music start, Context: The Renaissance era was from 1400 to 1600. It was characterized by greater use of instrumentation, multiple interweaving melodic lines, and the use of the first bass instruments. Social dancing became more widespread, so musical forms appropriate to accompanying dance began to standardize.
A: 
Renaissance