Do you think this sounds nice for my new room?

its going to be all white with a feature wall, which i was thinking of doing purple. then i had the idea of writing all my favourite song lyrics on the wall in all different colours. i love music and i know that it would suit me perfectly. starting in one corner then adding as i find new songs i love. i would just buy like tester pots of paint so i could get lots of different colours. does this sounds nice to you and would it be easy to paint over the purple or should i opt for a lighter colour so all my lyrics can be seen more clearly? any other tips welcome .. im allowed to do anything i want with my new room and i have lots of free time and friends to help me lol!! xxxx