A booklet about Nada Mantapa, a souvenir has been published, describing its glory. Please read it.
Coming to your question, it is not possible for Swamiji to present the music of all the past great musicians. Another birth is needed. How am I to sing Mozart? The potraits in Nada Mantapa show our respect for them all.
I tell all the composers who surround me here, to listen to my bhajans. I urge them to do more service to music by taking repeated births. I remember them. Blind, deaf, mute, sleepless with mental agony, and yet they all gave superb music despite their troubles. I tell them to please come back and bless future generations also. Let us all return. 2033 we will all return and perform. Some if you will remain. Some of you will be gone by then.
(Q&A Sessions 13 Dec 2015)