A class of demigods who are heavenly singers and musicians
in Hindu mythology.
Humans are infrequently encountered by the gandharvas.
The power to give wonderful singing voices to females is one
of their heavenly endowments.
The Gandharvas are considered witnesses in a Gandharva
marriage, one of the eight types of marriage authorized in dharma literature,
since they are continually observing from above.
Consensual sexual intercourse was used to contract the
gandharva marriage.
See also the eight classical kinds of marriage.
You may also want to read more about Hinduism here.
Be sure to check out my writings on religion here.