A playlist is a collection of songs that you've grouped together for any reason, such as a list of your favorite heavy metal songs, the best songs to hear while you're meditating, or some old favorite songs from a specific year.
You can create a playlist in three ways:
Create an on-the-go playlist on your iPhone.
Create a Genius playlist on your iPhone.
Create a playlist on your computer using iTunes.
Making a playlist on your iPhone is handy when you're in the mood for listening to certain songs and don't have time to create a playlist through iTunes on your computer. You can create only one on-the-go playlist. After you create an on-the-go playlist, you can later edit or clear songs on the list.