Answer:
Sometimes dark and sometimes bright, I make my way among twinkling lights. Seas and oceans obey my call, yet mountains I cannot move at all. What am I?
I am a rock group with four members. All dead one was assassinated.
I have to be broken before I can be used
I am the word that has three syllables and twenty six letters.
I move without wings, between silken strings. I leave as you find my substance behind. What am I?
A first job for many kids, this could be described as "Media Distribution Management.