I'm not sure if this is the answer your looking for, but by playing a scale, starting on the sixth degree in a major scale (also called aeolian mode), you will essentially be playing a natural minor scale. Specifically, the relative minor.
A flat is the note that is a half step down from the note with the flat sign. A minor is the name of a type of scale, which is the scale starting with the minor note it's named after. For example, the B minor scale would start with B minor, as opposed to starting with C (the first note of the common C major scale).
A Major/Minor scale.
Each major key has a relative minor key and vice versa. For example a key signature with one sharp can refer to either the G major or the e minor keys. For major keys there is only one scale type. For minor keys there are 3: pure, harmonic, and melodic. In pure(natural) minor none of the scale degrees are altered. In harmonic minor the seventh scale degree is raised half a step. In melodic minor the seventh and the sixth scale degrees are raised half a step, ascending and returned to their pure minor descending.
The third note of the diatonic scale of any key.
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 third scale degree is called the mediant.
The subdominant is usually the fourth scale degree of a major or minor scale.
Any major or minor scale with eight notes starting on Do (the tonic note).
If this question is asking about the quality of the chord built on the 6th scale degree in a major scale, then the answer is minor.
The minor keys usually have a darker sound and feel to them - as opposed to the major keys which sound generally brighter. The minor keys are based on the sixth degree of a given major scale (lets take D major as an example, if we go up six steps in this scale we get the notes D, E, F♯, G, A, and B). So B minor will have the same key signature as D major (with two sharps). In a major scale there are four semitones between the first and third degrees of the scale but in minor keys there are only three semitones. So in the D major scale the third scale degree (mediant) is F♯ but the same degree in D minor if F♮ (natural). As with the major keys, minor keys can also contain up to seven sharps or flats in their key signature too.
It depends on which key. It's the tonic in C major/minor, the 2nd in Bb major/minor, the 3rd in Ab major and A minor, the 4th in G major/minor, the 5th in F major/minor, the 6th in Eb major and E minor, and the 7th in Db major and D natural minor.
(X) Minor Scale = 3 semitones below (Y) Major Scale E.G. C Minor = E♭ Major
A flat is the note that is a half step down from the note with the flat sign. A minor is the name of a type of scale, which is the scale starting with the minor note it's named after. For example, the B minor scale would start with B minor, as opposed to starting with C (the first note of the common C major scale).
F Major has a relative minor scale of D Minor.
"That would be A minor. Go a minor third below the tonic of the major scale to find the relative minor." Technically, there is no relative harmonic major to the key of C Major. The relative minor scale of C Major would the natural minor scale of A. A harmonic minor scale raises the 7th note of the scale a half step, giving us G#, which is not in the key of C Major.
if you start with a it will be A minor not C major. one is minor and the other is major completely different senses.
A major scale and its relative minor scale share the same key signature.