I need help with this.
For this category, look at one or two pages of text from a magazine or book and find at least five words that give you the impression of having a happy sound (whether or not the word itself connotes happiness), a sad sound, and another sound for an emotion of your preference. Try to find at least five words for each category. (If you need to skim more than a few pages, that's fine too.) There's no right answer for what makes a happy or sad sound; just trust your gut!