Possible Definitions:
1. Concert (v. t.) To plan together; to settle or adjust by conference, agreement, or consultation.
2. Concert (v. t.) To plan; to devise; to arrange.
3. Concert (v. i.) To act in harmony or conjunction; to form combined plans.
4. Concert (v. t.) Agreement in a design or plan; union formed by mutual communication of opinions and views; accordance in a scheme; harmony; simultaneous action.
5. Concert (v. t.) Musical accordance or harmony; concord.
6. Concert (v. t.) A musical entertainment in which several voices or instruments take part.
