Serial OS leaker Core has tweeted a sample from the new collection, and have now uploaded the full collection for anyone to download.
Here are all the November 2015 Lumia Tones up for grabs, original WMA format, all 70 of them https://t.co/9LhCP29ujD
— Core (@tfwboredom) October 25, 2015
The same sound scheme should be available on the other x50 range of handsets also.
The full selection can be sampled below: