Is raising the flat 7th scale-degree of a mode to become a leading tone to the final still modal?

1. What two modes contain a leading tone?
2. What scale degree is the leading tone?
3. What is a leading tone triad?
4. Why is the leading tone raised?

What two modes contain a leading tone?

If we go through the distances between the 7^th and the 1^st notes in each of the seven modes, we will see that only two modes have the leading note property – the Ionian and the Lydian modes.

What scale degree is the leading tone?

In the major scale, or any scale with a natural seventh scale degree like the melodic minor scale or harmonic minor scale, the seventh scale degree is known as the leading tone. The leading tone is a half-step lower than the tonic and has a natural gravity to resolve to the tonic.

What is a leading tone triad?

A leading-tone triad is a triad built on the seventh scale degree in a major key (vii^o in Roman numeral analysis), while a leading-tone seventh chord is a seventh chord built on the seventh scale degree (vii^ø7). Walter Piston considers and notates vii^o as V ⁰. ₇. , an incomplete dominant seventh chord.

Why is the leading tone raised?

In classical circles, the phrase 'raise the leading tone' means to sharpen the major 7 (B-natural in a C major scale) very slightly so that it 'leads' into the tonic (C). The converse is also true, in that flat notes can be lowered slightly to 'lead' into the next note.