Rotating speakers, often referred to as Leslie speakers, are a type of audio equipment that creates a unique sound by using rotating elements. These speakers typically have a rotating horn and a stationary bass speaker, which work together to produce a rich, swirling sound. This effect is commonly used in organs and electric pianos to enhance musical performances. The rotation of the speaker alters the sound waves, creating a Doppler effect that adds depth and movement to the audio. This technique is popular in various music genres, especially jazz and rock, where it contributes to a more dynamic listening experience.