Improve the sound quality of a track

I’m a beginner and I’d like to improve the quality of a track that sounds too high-pitched and metallic. I’m not familiar with the tools and I don’t know what to do. Can you help me, please?

The only native realtime equalisation control in Audacity is Bass and Treble.

If you want more precise realtime control you need to add a plugin, e.g.

https://www.voxengo.com/product/marvelgeq/ (free)

https://www.tokyodawn.net/tdr-nova/ (free)