How to Tune from Standard to Open G Variant

Start in standard tuning (E-A-D-G-B-E) and change 3 of 6 strings to play “TIME AFTER TIME”:

StringStandardTargetWhat to do
String 6E2D2Tune down a whole step
String 5A2G2Tune down a whole step
String 4D3D3Leave as is
String 3G3G3Leave as is
String 2B3B3Leave as is
String 1E4D4Tune down a whole step
Recommended string gauge: .010–.046. Tension stays close to standard, so a regular set works without any setup changes.Ernie Ball Regular Slinky (.010–.046) · affiliate link

Song Overview & Tuning Breakdown

"TIME AFTER TIME" by Kotaro Oshio is played in Open G Variant (C - G - D - G - B - D). Starting from standard tuning (E-A-D-G-B-E), you retune 3 of 6 strings: string 6 down to D, string 5 down to G, string 1 down to D. Overall string tension drops, with the biggest change being 2 semitones down. 58 other songs in our catalog use Open G Variant.

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Tunings Close to Open G Variant

Already tuned to C - G - D - G - B - D? These tunings are just one small change away.

Gear for Open G Variant

Strings and tools that make playing "TIME AFTER TIME" in Open G Variant easier.

Ernie Ball Regular Slinky (.010–.046)

Recommended gauge .010–.046. Tension stays close to standard, so a regular set works without any setup changes.

View strings

D'Addario Universal Micro Headstock Tuner

A headstock tuner makes switching in and out of this tuning quick, even on stage or without a mic.

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D'Addario Pro-Winder (winder + cutter)

Retuning 3 strings means a lot of turning — a winder speeds it up and trims new strings too.

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“TIME AFTER TIME” Tuning FAQ

What tuning is "TIME AFTER TIME" by Kotaro Oshio in?

"TIME AFTER TIME" is played in Open G Variant: C - G - D - G - B - D, from the lowest to the highest string.

How do I tune my guitar to play "TIME AFTER TIME"?

Start from standard tuning (E-A-D-G-B-E). String 6: tune down a whole step (E2 → D2). String 5: tune down a whole step (A2 → G2). String 1: tune down a whole step (E4 → D4). Leave the other strings as they are.

What string gauge should I use for Open G Variant?

Use a .010–.046 set. Tension stays close to standard, so a regular set works without any setup changes.

Other Songs in Open G Variant

Once tuned to C - G - D - G - B - D, try playing these tracks next:

Open G TuningIntermediate
D - G - D - G - B - DNo Capo
Open G VariantIntermediate
C - G - D - G - B - DNo Capo
Open G VariantIntermediate
C - G - D - G - B - DNo Capo
Open G TuningIntermediate
D - G - D - G - B - DNo Capo
Open G TuningIntermediate
D - G - D - G - B - DNo Capo
Open G TuningIntermediate
D - G - D - G - B - DNo Capo
Open G TuningIntermediate
D - G - D - G - B - DNo Capo
Open G VariantIntermediate
C - G - D - G - B - DNo Capo