First, read the English article below.

Downloading songs for offline use is only possible if you have a Spotify Premium subscription. You also need to be connected to Wi-Fi in order to download your Spotify music—you can't download songs over cellular data. Click or double-click the Spotify app icon, which resembles three black, horizontal bars on a green background. This will open your Spotify Home page if you're logged in. If you aren't logged in, click LOG IN, then enter your Spotify account's email address and password. In the "PLAYLISTS" section on the left side of the window, click the name of the playlist you want to download. Unfortunately, you cannot download albums on the Spotify desktop app. It's near the middle of the window. The switch will turn green to signify that the songs are downloading onto your computer. When a song finishes downloading, it will have a downward-facing arrow icon to the right of it. Whenever you're not connected to the Internet, you can open Spotify, click your downloaded playlist, and click the "Play" icon to the left of a song to play it. 

Now, please write a short abstract for it in Indonesian. Abstract:
Pastikan Anda memiliki langganan Spotify Premium. Buka Spotify. Pilih daftar putar. Sentuh alihan "Download" yang berwarna abu-abu. Dengarkan musik Spotify di luar jaringan.