The correct answer is: a) Call-and-response vocals.
Call-and-response is a vocal form in which a phrase is sung by one person or group, followed by a response from another person or group. It is a common feature of many folk songs around the world, including Mizo folk songs.
In Mizo folk songs, the call-and-response vocals are often used to create a sense of community and participation. The singer will sing a phrase, and then the chorus will respond with a repeated phrase. This can create a lively and engaging atmosphere.
Call-and-response vocals can also be used to create a sense of rhythm and momentum. The singer will sing a phrase, and then the chorus will respond with a phrase that has a different rhythm or tempo. This can create a driving and exciting sound.
Call-and-response vocals are a powerful tool that can be used to create a variety of effects in Mizo folk songs. They can be used to create a sense of community, participation, rhythm, and momentum.
The other options are incorrect because they are not common features of Mizo folk songs.
- Complex harmonies are not a common feature of Mizo folk songs. Mizo folk songs are typically simple and unaccompanied.
- Fast tempos are not a common feature of Mizo folk songs. Mizo folk songs are typically slow and lyrical.
- Minor key melodies are not a common feature of Mizo folk songs. Mizo folk songs are typically in major keys.