Oscar winning musician A.R. Rahman, whose biography "Notes of a Dream: The Authorized Biography of A.R. Rahman" was launched here, says the book has been a journey for him and took him to those corners of his life which have remained candid for a long time.

Written by author Krishna Trilok, the biography in association with Landmark and Penguin Random House was launched here on Saturday. "Notes of a Dream has been a journey for me that took me to those corners of my life which have remained candid for a long time. The insightful conversations with Krishna Trilok have unravelled parts of my creative and personal life which are not known to many," Rahman said in a statement.