mischeivious

The band was very mischievous

orthodox upbringing

George being a muslim living under an orthodox father wasn't allowed music

a burden , undertalented

One of the band member was undertalented and had to work more to achieve the same result. He always lived in fear of him being thrown out. He wanted the spotlight . He loved it more than the band. The band members often seeing that he undertalented had to improvise and he was always a burden .

split

One of the band member dies. One of them gets tired with all the troubles and goes on to live a Sufi lifestyle. And the surviving members. Will they survive the split of band ? Will their friendship endure beyond band. The band united them and separated them.

just them together

I read a post about Beatles coming together in a single room even though they had separate rooms in big hotels. They just want to be together. There is also a scene in ' a hard days night' where they are flooded with admirers but they secretly take off to have a drink.

maybe the band ' fame has taken them beyond what they wanted . They got tired of it. Of being not having a time of their own. It was one of the reason for split.