The Riddle
What has keys but can't open locks, yet can change the world with a single note?
Related snips
Riddle
i-have-strings-but-im-not-a-puppet-i-have-keys-but-im
what-has-keys-but-cant-open-locks
i-can-be-grand-yet-fit-in-your-hand-what-am-i
i-have-keys-but-open-no-doors-make-music-without-a
i-have-keys-but-open-no-locks-i-have-strings-but-i-am