How to Tune a Guitar to Drop C on Korg GA-30

Written by charlotte johnson
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How to Tune a Guitar to Drop C on Korg GA-30
Drop C tuning is used by some metal bands. (guitar player image by bright from

"Drop C" is an alternate guitar tuning that may be used to play certain songs. Instead of being tuned to the standard pitches of E, A, D, G, B and E, a guitar in drop C is tuned to C, G, C, F, A and D. Some musicians tune their instruments by ear or by using another instrument as a reference. However, the Korg GA-30 is an electric guitar and bass tuner that can make this process much easier and more accurate.

Skill level:
Moderately Easy


  1. 1

    Plug your guitar into the tuner via a standard instrument cable. If you do not have a pickup on your guitar, you do not need to do this (the tuner has a built-in microphone that will pick up the sounds of the guitar).

  2. 2

    Press the power button to turn the tuner on.

  3. 3

    Play the low E string (the lowest and thickest string) and watch the tuner. If the string is in tune, the display will show "E," the needle will be in the middle, and the centre light above the needle will be lit. If the needle points to the right of centre and the "#" light is on, the note is sharp and you need to loosen the tuning key. If the needle points to the left of centre and the "b" light is on, the note is flat and you need to tighten the tuning key.

  4. 4

    Now press the "flat" button on the tuner four times. Then loosen the tuning key for your E string until the string registers "C" on the display--and the needle and indicator lights are correct.

  5. 5

    For the remaining five strings, press the flat button down twice (from their standard pitches), and retune your instrument to the new pitches.

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