Access previous Playlist that update weekly "new music Tuesday"

[Csibbs]

I am following the new music Tuesday Playlist and have it set to download to my phone, I really enjoyed last week's Playlist but when I went to listen to it I had noticed that it updated and last week's Playlist was nowhere to be found, I was under the assumption that it would just go to my saved music Playlist but it was nowhere to be found. Any way I can access this previous Playlist again?