There isn't one simple answer to that question. The Beatles took inspiration for their songs from everywhere. From newspaper articles, to places in their hometown, to real stories from their past, to complete nonsense.
It really depends on the song.
Any of the Beatles albums can be purchased online from sources such as Ebay or Amazon. Music City, SamAsh or Hip Hop are sources of in store purchasing.
yes the beatles music was and is legendary!
There are many places where one can purchase "Love", an album by the Beatles. One can purchase this album at popular on the web sources such as the Apple iTunes store and Amazon.
The Beatles music is owned by EMI. They have licensed Apple to distribute the music via the iTunes store.
Yes, the Beatles knew how to read music. They were all proficient musicians who could read and write music notation.
Japan had banned Beatles music. They did because Japan did not appreciate the fact that they had done drugs.
Yes, the Beatles could read music. They were all talented musicians who had a strong understanding of music theory and notation.
Music
They influenced the music we have today.
The Beatles' music was special because they created new sounds and rhythms no one had ever heard.
If Beatles music suits the format of a given radio station or program... why wouldn't they be?
Yes, but you can't buy any Beatles music on iTunes except for the stuff sang by "fake" beatles. You would need to buy a CD to listen to their music.