Answer:
I am the noblest musical instrument
What is easy to get into but hard to get out of?
I cannot be felt, seen or touched. Yet I can be found in everybody. My existence is always in debate, yet I have my own style of music. What am I?
I start in little but I end in full you'll find me in half and complete.
I fill a room but take no space.
A little house full of meat, no door to go in and eat.