May be the problem is equating Church and Synagogue? I firmly believe they are quite different. Synagogue was the physical tent where presence of God was. The place where God dwelled. Today He dwells in us. Church is nothing but the body of believers in whom Jesus dwells. I don't think Church as a building compared to Synagogue. Just my take. While orderly corporate worship is so important, there are no legalistic rules for Church worship or order of service. If OT saints danced in joy before the Lord outside of synagogue, the same should be acceptable if a believer today does the same inside Church building.