I would love it for Spotify to add this tunning option, I dont think it should be much trouble and it's actually very easy.
This would be a huge favor to us people that love to hear music on a better and pure tunning.
I know there are some artist that have music in Spotify at this tunning but I think it would be nice work Spotify to add an option where you could modify the tunning of any song.
Thank you and please dont forget to Kudos. :)
Updated on 2019-07-11
Thanks for adding your votes to this idea.
As many of you have pointed out below, there are tunes on Spotify already in 432 Hz.
Spotify presents tracks as they are meant to be heard by the Artist. As such, we can't implement a feature that would change the tuning of a song for them - as this would go against how they intended their music to be presented.
Thanks for checking out the Ideas board!