Major key意思

"Major key" is a musical term that refers to a musical key, or scale, that sounds bright or happy. In Western music, major keys are typically associated with positive or upbeat emotions, while minor keys are often associated with sad or melancholic feelings.

A major key is based on a major scale, which has a specific pattern of whole steps and half steps. For example, the C major scale consists of the notes C, D, E, F, G, A, and B, where each letter represents a note and the pattern of whole and half steps is W-W-H-W-W-W-H (whole step, whole step, half step, whole step, whole step, whole step, half step).

In contrast, a minor key is based on a minor scale, which has a different pattern of whole and half steps. For example, the A minor scale consists of the notes A, B, C, D, E, F, and G, where the pattern of whole and half steps is W-H-W-W-H-W-W.

Musicians often use the term "major key" to refer to the overall tonality of a piece of music, meaning that the music is centered around a major scale and its chords. Major keys are identified by their key signatures, which indicate the number of sharps or flats in the scale. For example, the key of C major has no sharps or flats, while the key of G major has one sharp (F#).