Punctuation
I decided to learn how to play the guitar, because I wanted to be in a rock band.

I think we don't need a comma after "because".

correct it please.

Question

Punctuation
I decided to learn how to play the guitar, because I wanted to be in a rock band.

I think we don't need a comma after "because".

correct it please.

Answer

You're correct that the comma is unnecessary in this exampl.. You only need a comma if the meaning of the sentence would be ambiguous otherwise. Here are some examples of ambiguous sentences:http://www.dailywritingtips.com/5-calls-for-a-comma-before-%E2%80%9Cbecause%E2%80%9D/

Answer

Up to you.