According to american neuroscientist Andrew Huberman, listening to this song can reduce anxiety up to 65%.
Credits to @hubermanlab. The full scientific background can be investigated in his podcast episode on How to Use Music to Boost Motivation, Mood & Improve Learning. See the quote below for the tldr;
People that listen to a particular song experience up to 65% reductions in their anxiety. And I should point out that 65% reduction in anxiety – in this case – was accomplished with just three minutes of listening to this one particular song. That particular song was as effective in reducing anxiety as one of the most commonly prescribed Benzodiazepines. Title of the song is Weightless by Marconi Union
Andrew Huberman