The Korg MA-30 Metronome has features like volume control and sophisticated rhythms such as triplets and quadruplets with inner beats omitted. Its easy-to-see display includes a cool liquid crystal pendulum.Highly visual liquid crystal pendulum13 different rhythms are built-in so you can practice to more than a click trackRhythms include duplets, triplets, triplets with inner beats omitted, quadruplets, and quadruplets with inner beats omittedTwelve reference pitches C4 -B4 for you to tune toAdj..