Here is a transfer of a cassette released in 1979 featuring the celebrated veena maestro S Balachander and his disciple Gayathri Narayanan , accompanied by UK Sivaraman on mridangam and TH Vinayakaram on Ghatam.
As a followup to a recent post of a French LP by the Carnatic violinist MS Gopalakrishnan , for this post we have a cassette released in 1993 by HMV. It was recorded in 1973.
Here is a very well-recorded and enjoyable off-air broadcast recording from French radio of a performance by Carnatic vocalist Aruna Sayeeram (also spelled Aruna Sairam). At 42 minutes it's obviously not the entire concert, but what we have preserved by the radio wizards in Paris is really quite beautiful.