A couple of days before November 1st.
Day of the dead is a Mexican holiday that worships the dead
The relatives of the deceased.
They build an altar.
The Dead (Zombies) eats them during the night.
It just means the altar is dedicated to such person; everything located on the altar -- flowers, meals and other personal belongings -- are there for him/her.
The Altar of the Dead was created on 1895-05-15.
nov 1 and 2
At most, one or two weeks after November 2nd.
altar for dia de los muertos means an altar to the dead.
On the Day of the Dead, traditionally, there are usually two candles placed on the altar for each deceased person being honored. This symbolizes the duality of life and death. The candles are often white and represent purity, while their light is believed to guide the spirits back to the altar. Additional candles may also be included for decoration and to enhance the spiritual ambiance.
To make a special offering to the altar also known those who past away
The music the deceased used to like. If the people you are mourning liked reggae, salsa, jazz or classic, you would be playing such kind of music before the altar for day of the dead.