Unit 1: Chords (Vertical Simultaneity)
The Brain: Theory
Vertical simultaneity is the fancy term for harmony. On a 25-key controller, we often build triads (3-note chords) to fit within a single octave.
Visual Lab: Infographics
Triad Construction 101
Knowledge Status: Quiz
1. Which triad type consists of a Root, Major 3rd, and Perfect 5th?
Major Triad
Minor Triad
Diminished Triad
2. Which chord quality is often described as "tense, unstable, or mysterious"?
Major
Diminished
Perfect
3. When playing on a 25-key controller, why is "voicing" important?
To keep chords within the limited 2-octave range.
To make the keys feel heavier.
To change the MIDI channel.