Korg - TM-50TR Tuner/Metronome/Tone Trainer

Analyze your playing to improve your sound & technique. A tuner/metronome that further improves the quality of your practicing.

In addition to the existing high-precision tuner functionality, the TM-50TR adds a new Tone Trainer function which analyses your playing sound in more detail. It detects not only the pitch, but also the volume and brightness of your tone, as well as the stability of these aspects, making it much easier to evaluate your own playing and practice more efficiently.

Of course the TM-50TR also provides Sound Out and Sound Back functions that are great for improving your sense of pitch. Additionally, its metronome capabilities feature a new "periodic" metronome function that can help you practice keeping the rhythm. The display newly features a large color LCD for excellent visibility.


  • A tuner that detects not only the pitch, but also the volume and tone
    • Tone Trainer function analyzes your sound as you play
    • The Sound Out function produces a reference tone from the built-in speaker 
    • The Sound Back function generates the reference tone that’s closest to the input sound
  • A metronome that further develops your sense of rhythm
    • Usable simultaneously with the tuner
    • Fifteen rhythm variations
    • Periodic metronome function is ideal for training
  • A compact body packed with numerous functions
    • Large color LCD display for improved visibility
    • Auto power-off and memory backup functions


  • Tuner:
    • Scale: 12-note equal temperament
    • Detection Range: C1 (32.70 Hz)–C8 (4186.01 Hz) with sine wave input
    • Reference Tone: C3 (130.81 Hz)–C6 (1046.50 Hz) three-octave range
    • Tuning Modes: meter mode, sound out mode, sound back mode
    • Calibration Range: A4=410–480 Hz (1 Hz units)
    • Detection Range: ± <1 cent
    • Sound Accuracy: ± <1 cent
  • Metronome:
    • Tempo Range: Quarter note=30–252 times/minute
    • Tempo Setting Method: pendulum step, full step, tap tempo
    • Time Signature Range: 15 types (0–9 beats, duplets, triplets, triplets with center note omitted, quadruplets, quadruplets with center notes omitted)
    • Periodic Metronome Setting Range: 0 - 4 measures (with a setting of 0 the function is off)
    • Tempo Precision: ± 0.3%
  • Main
    • Connectors: INPUT jack (6.3 mm monaural phone jack, unbalanced), headphone jack (3.5 mm stereo mini-phone jack)
    • Power Supply: Two AAA batteries (3V)
    • Battery Life:Approximately 24 hours (A4 continuous input, tempo 120, four beats, maximum volume, when using alkaline batteries)
    • Dimensions: 111 x 82 x 18 mm / 4.37” x 3.23” x 0.71"
    • Weight: 108 g / 3.81 oz. (including batteries)

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