How to add songs to a Spotify playlist on desktop or mobile, and curate your music exactly as you like

To add songs to a Spotify playlist, you can drag and drop them into the playlist, or use each song's options menu.
Techno-Science.net

How to Upload Music on Spotify and What are the Best Free Music Distributors

To upload music on Spotify, use a distributor like RouteNote, Amuse, Tunecore, or DistroKid. These platforms distribute your music to Spotify and other major services for free, allowing you to keep ...
How-To Geek on MSN

You And Your Friends Should Be Using Spotify's Queue Feature, Here's How

The Swipe to Queue feature has been a staple feature of Spotify's mobile apps for a while now. It works rather ...

How to transfer your music library from one streaming service to another

On iPhone, go to Settings, then Apps, then Music. Tap “Transfer Music from Other Music Services” to pop up a list of various ...