I am looking to get this particular collection of Yesduas - a classical composition called 'Gurusmaranam'. This is Yesudas along with his Guru - Chembai. I have heard that the compositions are excellent and on of Yesduas' best. All the more since he sang it with Chembai...Yesudas has done his best to be singing with his Guru...
Should try and dig that classic out at some audio store soon...