First a disclaimer. I know very little about classical music though I seem to enjoy some of it. Some time ago, I started remembering two books by Sri Rallapalli Ananthakrishna Sarma that I read in the fifties and started googling. The information I found about Tallapaka came out of this. I enclose this below; the first link is not working. Recently, somebody in a Telugu site Racchabanda started enquiring about the composers for Annamacharya songs and I remembered the Hub discussion and hence the query. Here is the information I had.
From http://www.sruti.com/sepoct2k/sepntbk.htm
written by V.A.K.Ranga Rao

"All the Annamayya songs sung by M.S. Subbulakshmi were tuned by
contemporary musicians: Rallapalli Ananthakrishna Sarma, Nedunuri
Krishnamurthy, Kadayanallur Venkataraman, et hoc. But their names were omitted by the TTD and the Gramophone Company of India, thus misleading the public into thinking that the music too was composed by Annamayya. This resulted in the loss of at least a crore of rupees which the tunesmiths would have received from whoever played recordings of their work publicly. There is a Society to look after these amounts and collect them on behalf of the creators (singer, lyric writer and composer) only if their names are mentioned."
From http://www.new.dli.ernet.in/data/upl...T/00000013.txt

"The rich legacy he left behind was practically unknown to the music world until 1949 when a group of archeologists and scholars discovered a collection of copper plates on which the composer engraved his songs from a small chamber in Lord Venkateswara Temple at Tirumala. Later, Sarvasri Veturi Prabhakara Sastri, Rallapalli Ananthakrishna Sarma and many others made an exhaustive study of his compositions and set them to music."
If there is any information I will pass it on to that person (Padmaja I think) in the RB group. I am not member of that group but visit the site once in a while.