The Korg MA1 Digital Metronome is a compact metronome that solidly covers all the basics with a broad tempo range and a rich variety of beats and rhythm patterns. The MA1 metronome also shows the beat in an innovative way that makes practicing easier. With stylish design and reliable functionality, this is an indispensible rhythm training aide for any musician. With the Beat-Counting display, the number of triangular icons in the display indicates the specified beat. On each beat, the icon color changes (moving from left to right), indicating the current beat of the measure in a way that's intuitively clear. This provides visual cues as to when measures will change a helpful advance over metronomes that provide only an audible indication. The tempo of the Korg MA1 can be set using one of three methods: increase or decrease the tempo using the standard increments familiar from a mechanical metronome (pendulum steps); increase or decrease the tempo in single-step increments over the full range of 30-252 (full steps), or use the Tap Tempo function to enter the tempo by pressing the switch in time with the music. Practice a wide variety of songs by specifying any beat count from 1 to 9, and choose any one of the eight rhythm types: quarter notes, eighth notes, triplets (straight triplets, triplets with inner beat omitted, triplets with the third beat omitted), and sixteenth notes (quadruplets, quadruplets with middle beats omitted, quadruplets with the third and fourth beats omitted). Sound Out mode on the MA1 metronome produces a reference pitch (selectable over an octave C4-B4) that you can use when tuning nearly any instrument. The frequency of the A4 reference pitch (calibration) can be adjusted in 1 Hz steps over the broad range of 410 Hz to 480 Hz. The MA1 metronome is designed for long battery life, with continuous operation of approximately 70 hours when using zinc-carbon batteries, or approximately 290 hours when using alkaline batteries.