The folk music of Vietnam is full of variety and includes exquisite forms, such as hát chầu văn, ḥ, quan họ, dân ca and hát xẩm ca trù. It is very popular in Ha Bac and all across Vietnam and has variations.
Hát chầu văn
This is another form of Vietnamese music used during various religious ceremonies.
Nhạc dân tộc cải biên
This is a type of folk Vietnamese music emerged in the 1950s and has often been criticized by the purists.
This is another very well known form of folk music the credit for which goes to A Dao, who used to lure the enemy when she sang. Her voice was magical.
The songs are based on themes which include love, emotions and the countryside. "Ḥ" is loved by people in Cần Thơ.
There are even more genres of Vietnamese music. One of them being the music meant for fun, which includes the Hat a Dào. It basically means the songs of the female singers.
One other popular form is the Theater music. This kind of music is again classified into three forms:
a) Popular theater, which is known as Chèo
b) Reformed Theater, which is also known as Hát Cai Luong
c) Classical or Traditional Theater, which is popularly known as Hát Tuông or Hát Bôi
Now, with the internet facilities easily available, one can buy music CDs of Vietnamese music online. Besides downloads, there are free radio channels online that play Vietnamese music.
There are online stores too that offer Vietnamese music downloads of your favorite artists. You can buy CD of albums or download the songs in mp3 format.