Which mode is major scale with raised fourth?

Which mode is major scale with raised fourth?

• A. Ionian
• B. Dorian
• C. Mixolydian
• D. Lydian

Answer: (D)

Raising the fourth degree of the major-scale pattern creates the Lydian mode. The major scale has the notes 1-2-3-4-5-6-7; when you sharpen that fourth, it becomes 1-2-3-#4-5-6-7. This #4 is the defining feature of Lydian. For example, starting on C, you get C-D-E-F#-G-A-B-C. That raised fourth interval gives a bright, shimmering color that sets Lydian apart from the others, which keep the natural 4 or alter other degrees.

Raising the fourth degree of the major-scale pattern creates the Lydian mode. The major scale has the notes 1-2-3-4-5-6-7; when you sharpen that fourth, it becomes 1-2-3-#4-5-6-7. This #4 is the defining feature of Lydian. For example, starting on C, you get C-D-E-F#-G-A-B-C. That raised fourth interval gives a bright, shimmering color that sets Lydian apart from the others, which keep the natural 4 or alter other degrees.