Ananthalakshmi Sadagopan is one of the renowned Carnatic music singers considered on par with the female legends who made their concert entry in the 1940s like M. S. Subbulakshmi, D. K. Pattammal and N. C. Vasanthakokilam. Ananthalakshmi was the first to cut a full length Tamil LP for HMV company. She passed away on May 15, 2013.
TTN and I could share our thoughts in the August 2013 issue of Sruti, the magazine for performing arts. Here is the pdf version of the article for download.
Check also the more detailed Tamil language tribute I wrote for Solvanam, a web magazine.