Article: Very often when you make a mixtape for a parent or other older relative, it is intended to be a way for them to sample new music. If you're going to show them a lot of new music, spend some time trying to guess whether or not they'll actually enjoy listening to any of it first. Remember, this person has very different musical tastes than you do. For this kind of mixtape, pick the catchiest and most accessible songs you can think of within the confines of whatever type of music you're planning to give away. Use your past as a guide. If you can't figure out which tracks those might be, think back to the first time you heard the albums in question. What tracks immediately caught your attention? Even if you've moved on from them now, those are the tracks most likely to make a good impression on people who haven't heard the music before.

What is a summary?
Hear with the recipient's ears. Pick your tracks based on what you think they will like.