YellowBrickCinema’s deep sleep music videos have been specifically composed to relax mind and body, and are suitable for babies, children, teens, and adults who need slow, beautiful, soft, soothing music to assist them to fall asleep. See them as a form of sleep meditation or sleep hypnosis gently easing you into that wonderful relaxing world of healing sleep.

Guitars have been played since the Renaissance era, after descending from the ancient Greek instrument, the kithara. Or, at least, that's how the theory goes: the only real proof for this is the similarities between the Greek word and the Spanish word, quitarra. Early guitars often had four strings, evolving into the six-string version we know today in the late 1600s. Anton Stradivari, the famous violin-maker, also had a hand in making guitars. There's now only one Stradivarius guitar left in existence.