A candy dispenser filled with Skittles and bubble gum is easy to miss in Annig Raley’s Glenwood Springs home. Amid dark paneling, tastefully arranged artwork and vibrant gardens peeking through the windows, the dispenser hides behind a Baldwin baby grand piano, the centerpiece of the living room. Since the early 1990s, however, the candy dispenser has been a fixture of the piano lessons Raley has taught from her home. Although she has now retir…