Breach of Management Contract between Artiste/Dub Poet and Recording Company - Interpretation of contractual terms - Whether time was of the essence - Option to renew - Whether the option was exercised - Repudiation of contract - Whether the Claimant waived his right to terminate - Anticipatory Breach - Whether intention to breach established - Damages - Damage to reputation or loss of opportunity - Whether damages proven - Whether the award should be substantial or nominal - Whether the Defendant is entitled to a set off.