Spiritually (coming from the heart of the christian) heaven is not a physical place, there will be no physical instruments there. Which is exactly the pattern of God...
Old testament = physical people and physical worship
New testament = physical people and spiritual worship
After judgement day = spiritual people and spiritual worship
Do you not see that God is preparing us to live in the spiritual realm with Him?
If you can clearly see God's pattern- old testament/physical worship (let's call this 'blue' and new testament/spiritual worship (let's call this 'red') and after judgement day/completely spiritual (let's call this 'white' and the pattern goes... blue, blue, blue, blue, blue, blue, blue, red, red, red, red, red, red, red, white, white, white, white, white, white, white' who has the right or dares to make the pattern "blue, blue, blue, blue, blue, blue, blue, red, red, red, red, red, blue, red, white, white, white, white, white, white, white"?
God makes understanding scripture difficult on purpose. He wants us to study, dig, ask, seek, knock. He wants to filter out those who have no ears to hear and eyes to see. There is no private interpretation, but there are levels of understanding and growth in Christ. Babies believe that Jesus only lead by words, adults believe Jesus lead by word and by example. And they throw a tantrum when you try to explain the spiritual to them, or the big picture.
I guess I combined answering you and Acadia, sorry.