Recently the amp I use for my midi controller broke and I've been stuck for something to use. I know that often people put an mp3 player through their guitar amp and I'm wondering if I can do the same with my laptop. I have my midi keyboard running through my laptop and usually use a guitar cable and an adapter going from the headphone jack as the output. I know that usually a keyboard would have too high a frequency and a guitar amp wouldn't handle it well but if the keyboard is coming from the laptop does it make a difference and would it break my guitar amp?