Nanganallur Sri Thyagaraja Sangeetha Samajam it is
https://www.youtube.com/watch?v=zuchxBJp940
with MAKrishnaswamy, PraveenSparsh & MadipakkamMurali
begada, bilahari, ahiri, hindolam, gambiravani featured & kAnada going on now - prelude to suki evvarO I think