A Rahman Lost

I saw the movie Guru a few days back. I was expecting the music to be in the lines of atleast Yuva, if not in the lines of Bombay, Roja, Dil se. I was thoroughly disappointed. Do you guys remember the introduction songs for the actresses in Roja and Bombay? Dil Hain Chota Sa and Kehna Hai Kya. Well, I expected the intro song of aish to be up there. The intro song for ash was not only diasppointing but also irritating. She just keeps humming Na Na Re through out the song which is just irritating to the core. Sometimes I just keep wondering what happened to the Rahman that made Anjali Anjali, Vinara Vinara, Ithiye Prema etc. Any clue where that genious has gone?