The Emotion of Melody

So Saturday I went by moms house to use her car, she was late home as usual and then demanded on talking to me for half an hour before I could escape anyway. Fortunately I was playing around on the crappy classical guitar at that house and was able to play away any dissent I wanted to just shout out at her. I learned that give either a guitar or a piano I can put any emotion into melody, no matter if I could use words to describe it or not. Minor progressions, suspended chords, staccato or legato notes, I can make it all come out. I'm not a phenomenal musician, but I play well enough for myself and the purpose therein.