Dream about concert hall is a portent for your actual concerns about a relationship or your desires to have children. You need to learn to stand on your own. You are second guessing or over-thinking your choices. Your dream is a metaphor for patience. You need to be more direct some matter.
Concert hall dream signals control of your subconscious. Perhaps there is a lesson that you need to learn. You need to reevaluate your decisions and goals. It means the cycle of life. Perhaps the newness and uncertainty of a discovery makes you a little more cautious.
If you dreamt about concert hall:
You know in your heart that it is time you had a discussion, but at the same time it is not wise to embark on this without some idea as to what approach you are going to take.