What instruments and key do you use in wild-west-movie kind of music?

In wild-west-movie music, common instruments include the banjo, fiddle, acoustic guitar, harmonica, and sometimes the tuba for a deeper bass sound. The music often utilizes a major key, particularly the key of C or G, to create a bright, open feel that reflects the vast landscapes of the West. Additionally, minor keys can be used to evoke a sense of nostalgia or melancholy, enhancing the storytelling aspect of the genre.