Below is an instruction that describes a task, paired with an input that provides further context. Write a response that appropriately completes the request.

### Instruction:
Write a 20-word summary of the following passage.

### Input:
Many forms of music have roots in folk styles. These include a variety of forms from different countries and regions, including bluegrass from the American South, Irish traditional music, Indian classical music and klezmer from Eastern Europe, amongst others.

### Response:
Folk music has been a source of various genres of music for centuries, such as bluegrass, Irish traditional music, Indian classical music, and klezmer music from Eastern Europe.