Quartet 
To dream of a quartet playing romantic music indicates that you may deserve some special time with a loved one. Note the music, emotions, and surroundings, as there may be hints for improving your relationship.
Four
To dream of the number four represents steadiness, physical restriction, hard work, and worldly qualities like the four corners of the earth. It also represents capitalistic issues. You are a person who makes things happen.
Quadruplets
To dream of quadruplets may mean you are about to get more than you bargained for. You can't always control the outcome no matter how well you plan or try.
To dream of quadruplets implies that you are currently involved in something that is going to suddenly require more time and attention. It will probably bring higher reward.
- 1