gutsy

adj

1. (informal)Marked by courage, determination or boldness in the face of difficulties or danger; having guts.
2. From the gut; deep and often coarse.

   “Album release show for Cline's "S*&%ferbrains! Vol One Chapter 9." The singer and guitarist has a gutsy voice, both rustic and soulful lending itself well to country, punk, bluegrass, soul and rock.”