The Nashville Sound is a subgenre of country music that emerged in the late 1950s and became popular in the 1960s. It is characterized by smooth vocals, orchestral arrangements, and a focus on pop influences. Artists like Patsy Cline and Jim Reeves were key figures in this movement, helping to broaden the appeal of country music beyond its traditional roots. This sound often features background vocals, strings, and a polished production style, making it more radio-friendly. The Nashville Sound aimed to attract a wider audience, leading to the integration of country music into mainstream pop culture.