Korg OT120 Orchestral Tuner Meter-Type Chromatic

The Korg OT-120 Orchestral Tuner is a chromatic tuner purpose-built for the demands of orchestral, band, and ensemble musicians. Its 8-octave detection range spans the full breadth of acoustic instruments, from the lowest pedal tones of a tuba or contrabassoon to the highest harmonics of a piccolo or violin. The dual display pairs a classic needle-type meter — favored by many musicians for its intuitive visual sweep — with a backlit LCD that provides precise digital readouts, ensuring excellent visibility whether you are tuning backstage, in a dimly lit orchestra pit, or under bright stage lights.

What sets the OT-120 apart from general-purpose tuners is its support for multiple historical temperaments, making it a practical tool for early music groups and performers who need tuning systems beyond modern equal temperament. The Transpose mode is a welcome convenience for wind players, letting clarinetists, trumpeters, and horn players tune without converting pitches mentally. The Sound Back mode adds another layer of usefulness by playing an audible reference tone matched to your input pitch, though this feature does require the optional CM-100L contact microphone to function. Compact enough for a gig bag but feature-rich enough for serious rehearsal and performance work, the OT-120 fills a specific niche that generic guitar tuners simply cannot.