Most music from the medieval period has been lost, but what remains from this time is very calm and soothing. During the Middle Ages, music was often played at weddings and holidays to set a romantic mood, but it was rarely written down and instead passed down by memory. Various instruments were used including the flute, recorder, harp, and pipes. Troubadours and minstrels traveled to perform songs of chivalry and courtly love while accompanying themselves on instruments like the harp. Some notable composers from this era include Guido d'Arezzo and Hildegard von Bingen.