Nokia has just received a trademark for a Boot-up tune in Europe. The sound trademark is described in an image that shows Musical symbols. We can’t make it out but it may be the “Nokia Tune”.
You can check the graphic representation of the sound in the image below that shows the musical symbols.
The trademark application is dated 29/09/2017. If you check the trademark description, Nokia seems has plans to use this tune in many ways in future.