There are 12, from C to B.
Major keys tend to be associated with cheerful or upbeat feelings.
Count up a sixth from the major (C) to find the minor (A).
Only one: the F-sharp.
There are seven keys with sharps and seven keys with flats, one key has no accidentals altogether, making a total of 15 possible major keys you can write in. There are also 15 minor keys with the same key signatures, totalling 30 keys. The 15 Major Keys Are: C Major (no sharps or flats) G Major (one sharp) D Major (two sharps) A Major (three sharps) E Major (four sharps) B Major (five sharps) F♯ Major (six sharps) C♯ Major (seven sharps) F Major (one flat) Bb Major (two flats) Eb Major (three flats) Ab Major (four flats) Db Major (five flats) Gb Major (six flats) Cb Major (seven flats) Hope that helped!
The diatonic scale that is played mostly on the black keys is F# major (also known enharmonically as Gb Major). The scale that is played only on black keys is the five note F# pentatonic scale. (AKA Gb pentatonic scale).
F Major has a relative minor key of D Minor and has the key if B Flat.
Singing ;)
You'll have to rephrase your question. There are no major keys in a chord. A chord is three or more notes sounded simultaneously. A major key is the set of notes in a major scale. There are chords within keys, there are no keys within chords.
The keys are C D E F G A B, there are no key signatures in C major scale
White keys are for the major scale, black keys for the minor.
The Florida Keys
The 6 Concertos are written in the following keys: 1) F major 2) F major 3) G major 4) G major 5) D major 6) B flat major