Bharat Sundar is a dependable vocalist, who is constantly on the learning curve and making efforts to frame an impressive concert format. Surprisingly, without going in for a fast number, he sang ‘Paal ninainthoottum thayinum’, a virutham in Dhanyasi, and followed it up with Gopalakrishna Bharati’s ‘Kanaka sabapathi darisanam’ in sowkhya bhava. Tyagaraja’s lively number in Kuntalavarali ‘Sara sara samare’ …