✅ Most arranger keyboards rely on complex menus. The AT-2 uses a simple button/LED interface—once set up, you just play. ✅ Great Sounding for Its Age: Even by today’s standards, the acoustic piano, drum kits, and jazz guitar sounds hold up remarkably well. ✅ MIDI Learn Function: Assign almost any control to incoming MIDI messages. ✅ Independent Mix Output: Stereo line outs plus a headphone jack with dedicated volume.
However, the AT-1 had one major limitation: it was designed primarily for tempered tuning (standard 12-tone equal temperament). As music became more sophisticated, and as interest in just intonation, pure thirds, and vintage synthesis grew, Korg realized they needed an upgrade.
is a vintage automatic chromatic tuner designed for high-accuracy tuning across a wide range of instruments. Unlike modern clip-on vibration tuners, the
The Korg AT-2 was a brilliant piece of engineering – a portable, reversible silent system that turns any compatible acoustic piano into a practice instrument with headphone output, transposition, and MIDI. For those who can’t find one, modern alternatives exist, but few match the AT-2’s combination of simplicity, low latency, and zero acoustic bleed.
was built as a desktop or handheld unit that uses a microphone or a direct 1/4" input to detect pitch.
: As an "auto chromatic" tuner, it can detect all 12 tones of the chromatic scale across a broad frequency range, making it suitable for guitars, basses, violins, and even bagpipes.
9.5/10 – A masterpiece of utility, only losing half a point for battery life and discontinuation.