can font-lock hide parts of text?

[Miguel Frasson]

Hi.

I would like to sort of make invisible some text that matches a
regexp. Supose I have a chordpro line like

 [A]This is a [G]Song

I would like to be able to make an option that shows
  ^This is a ^Song
where ^ is some mark (in a different color) that there there is a chord.

Someone has a clue?

[]'s

Miguel

-- 
Miguel Vinicius Santini Frasson
http://www.math.leidenuniv.nl/~frasson