It can set the mood or destroy it. Sometimes I just thinks of a sound I want and pound it out on the keyboard, but I don't always have access to that on location. And I do a lot of editing on location. So I do myself a time save. Go to FMA, search a word that you want.
Today I needed Ram, so I searched that - and the results are outstanding. Haven't heard of FMA? It's the Free Music Archive and it has changed my life.