Except as provided in subsections (b) and (c), the chancery court has exclusive jurisdiction of proceedings in this state brought by a trustee or beneficiary concerning the administration of a trust. 
 Any other court granted statutory equitable jurisdiction has concurrent jurisdiction with the chancery court in any proceedings in this state brought by a trustee or beneficiary concerning the administration of a trust. 
 The chancery court has concurrent jurisdiction with other courts of this state in other proceedings involving a trust.