When you share a playlist, the sequence or order of the songs within it can be very important to how the recipient approaches it. Songs are often added to a playlist folder in a random order. The good news is that you can reorder the songs to your liking. Here's how:
1. Once you’ve opened a playlist folder, click the Reorder Playlist button to the far right of the search bar.
2. Move your songs around however you want them to appear and make sure to click Save Order when you're finished.
You can also click the Order By menu and to see the options you can use to put your playlist in order automatically.
Note: the saved track order will be written to the corresponding track number field in iTunes for any MP3s downloaded from share or pitch links.