Julia is very excited today because she is planning a long road trip with her best friends. She sits on her bed to create the perfect music playlist for the car ride. However, selecting the correct songs is a very difficult challenge because everybody has a different musical taste. For example, her brother loves the energetic sound of classic rock and heavy electric guitars. In contrast, her cousin prefers modern pop music and electronic (EDM) dance beats to feel happy. Additionally, her best friend only listens to relaxing reggae tracks and acoustic folk songs from the countryside. Julia personally enjoys romantic ballads with beautiful piano melodies, but that music can make the driver sleepy. Because she cannot decide on only one style, she creates a massive mix with all the genres. She decides to use the random shuffle mode so that everybody stays happy in an unexpected way.