S. Balachander (photo from Srutimag Blog)
There is a wonderful LecDem delivered at Indian fine Arts Society in 1985 by the veena virtuoso S. Balachander. It is available online at Sangeethapriya.Org for your listening or download.
The talk is over 90 minutes long and covers various aspects of playing the veena and the ghana-raga tanam. Balachander explains how his style of play leverages the left hand and comes close to vocal music:
Click here:
http://bit.ly/SBalachanderLecDem