The guitar chords are A (with an open B string), F#, D, and E. What key is this !

Question: in standard tuning you are in the key of A.
A F# D E or I-vi-IV-V is a standard ballad progression.

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Answers: in standard tuning you are in the key of A.
A F# D E or I-vi-IV-V is a standard ballad progression.

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what is your guitar tuned to?

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Writing Better Songs: Writing Around a Chord Progression
http://guitar.about.com/library/weekly/a...

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