I just watched this episode a couple hours ago on the Hallmark channel, and I thought it was very well-written and thought-out. This is the sort of plot that still affects us today. A lot of the episodes have plots that we all can relate to, but given that the show takes place 130 years ago, its hard to be 100% on the same level. However, The Music Box covers the topic of bullying and in a way hazing, and that is for sure something we can still learn from today.
Be prepared to cry! Nellie is very mean to Anna and makes her read Peter Piper really fast. I broke out the tissue box rather quickly. It teaches you about good values and using judgment, though, and I highly recommend this episode.