👉 The aeolharmonica is an instrument that combines elements of the harpsichord, harmonica, and aeolian harp. It was first invented by Charles-Marie Widor in 1842, and it features a hollow body made from wood or metal that vibrates with a sound similar to that produced by harp strings. The instrument has gained popularity over the years due to its unique sound, which is often compared to the sound of wind and water.