The third in a B-flat scale is D.
Phrygian
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 music mode is produced by the intervals and the relation to the tonic (starting note.) If a mode is minor which is defined by a minor third in relation to the tonic, i.e a C note in the key of A then it will have a sad effect. If it is a major mode which is defined by a major third i.e C+ then it will have an uplifting effect. With some modes the effect is more intense than others. If you use the locrian mode for example it can be very depressing. The Dorian mode however which is a minor mode has more of a jazz minor sound, if you wish to hear an example of this mode listen to "Black magic woman" by Santana. Other examples are the Lydian mode which has a dreamy major effect. The two most common modes however are the Natural Minor scale which is basically the C major scale (Ionian mode) starting from the sixth note and the latter scale which is usually, as I mentioned as the "Major" scale.
Raising the 3rd in a major scale would be enharmonic to the 4th, and raising the 4th would result in a tritone above the tonic. Altering C major with those changes makes C D E# F# G A B C, which isn't any named scale. If this was done to a minor scale, the 3rd would become major and the 4th would still be raised. It would become C D E F# G Ab Bb C. Again, this is not any named scale. Only raising the 4th in major would turn it into a Lydian mode.
The Mixolydian Mode is a structure built on the fifth degree of the major scale (originally called the Ionian Mode). The formula to the Mixolydian mode is to add one flat or subtract one sharp from the key.As a straight comparison to the Major Scale you lower the seventh degree (in solfege, the "ti" note is lowered to a "to").Major:D E F# G A B C# DMixolydian:D E F# G A B C D
The third note of the diatonic scale of any key.
A major scale can also be known as the ionian mode.
The interval from the tonic note to the third note of a major scale is a major third.
The interval from the tonic note to the third note of a major scale is a major third.
7 note scale. Any mode of major scale with no chromatic alterations
Technically, the Ionian mode would be considered the major scale, as it is based off of the tonic note. However, it can be minor too.
The third scale degree is called the mediant.
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.
D natural
A flat The major third is the third note in the major scale of the key in question. The minor third for instance is G which is is the third note in the minor scale. dr
Simply a minor scale
The third note in a major or minor scale is called a mediant.
The G Mixolydian scale has an F Natural in it, while the G Ionian (Major) scale has an F Sharp.