The soundtracks are released by Columbia Records and are the highest-selling soundtracks in the 21st century.
Many songs and albums included in the Glee: The Music series are available on Spotify, but not all of them.
Some tracks may not be available due to licensing restrictions or agreements with specific platforms.
I would recommend checking the official Spotify website or reaching out to Spotify directly for up-to-date information on the availability of specific songs and albums.