What is the benefit of a 12 string guitar? 
human
A 12 string guitar has six more strings than a 6 string guitar. 
assistant
And that is so you can sound better? 
human
Yes, usually.  But also, people like 12 string guitars.
assistant
What is the benefit of a 12 string guitar? 
human
A 12 string guitar has six more strings than a 6 string guitar. 
assistant
And that is so you can sound better? 
human
Yes.
assistant