Music is the one thing that everyone on this planet can feel and vibe with, no matter what their native language might be. Tunes and melody are tools that we could one day use to unite the human race.
If you're looking for a way to reach out and speak to the world, but don't want to settle for just using words, then music could be the route for you. Music speaks to the soul; it brings out a side of you that you might have never known was there.
One of the easiest ways to make music is with a keyboard. The Prophet 08 PE is an excellent choice. It's more than just a keyboard, too—it's a 5-octave keyboard synthesizer that allows you to do so much, including stacking or splitting sounds, and using an 8-voice synthesizer.
Even beginner's find it easy to learn using a keyboard versus a guitar or other instruments. Change the world, one note at a time.