Watch the needle. If it leans to the left, the note is . If it leans to the right, the note is sharp . Adjust your tuning peg, slide, or valves until the needle rests dead center in the green zone. Tuning Electric Instruments (Cable Method)
The AT2 is versatile in its signal chain: korg at2
Play a single, sustained note on your instrument (e.g., pluck a string or play a note on a flute). Watch the needle
: Mechanical needle display supplemented by red and green center LED indicators. Key Features and Functional Capabilities Dual-Mode Signal Processing Adjust your tuning peg, slide, or valves until
The AT2 also includes a range of controllers and interface elements, including a joystick, sliders, and buttons, which provide musicians with a high degree of control over the instrument's sounds and effects. The instrument also features a built-in arpeggiator and a range of performance functions, such as pitch bend and vibrato.
The Korg AT-2 is a handheld, auto-chromatic tuner built with a focus on practicality and resilience. Its form factor is a direct reflection of its intended use: to be a reliable tool for the stage, studio, or practice room.
The technical brilliance of the AT-2 lay in its "Auto Chromatic" capability. In an era where many affordable tuners required the user to manually switch between notes (E, A, D, G, B, E), the AT-2’s internal circuitry could automatically detect the pitch being played across the full chromatic scale. This allowed for the tuning of non-standard instruments—harps, brass, and woodwinds—without requiring the player to have a deep theoretical knowledge of hertz frequencies. It featured a built-in microphone for acoustic instruments and a 1/4-inch jack for electric guitars, making it a universal tool for the bedroom hobbyist and the studio session player alike.