Tuning Code - G4, C4, etc.

[mandoglobal]

Hey All -

I should know this, but I don't. Can someone explain the tuning code that is used to describe various tunings for stringed instruments? Specifically wondering about the number that follows the note (G4, C4, etc.) Thank you!

[Tobin]

Those denote an octave range. Like this: http://www2.siba.fi/muste1/index.php?id=58&la=en

[Jim P.]

This might help....

[John Kelly]

A4 is the note, at 440 Hertz, which is used for tuning to "concert pitch" - It is the note above middle C on the piano, as shown in the diagram jim P has included. C4 is middle C, the C an octave below this is C3, and so on.

[mandoglobal]

Outstanding, thank you!!

[HonketyHank]

Thanks for asking the question and thanks for the responses - especially that diagram of the piano keyboard.

[Jim P.]

I should have put in that our instrument tuning, referring to the piano board, is: G3, D4, A4, E5

[Jairo Ramos]

Thanks for the responses! I didn't know the meaning of A4, G3, etc. in the electronic tuners.

[Phil Goodson]

The interesting thing to notice is that the octave changes when going from B to C.