The I-IV-V progression, also known as the perfect cadence, is the most common chord progression in Western music. It creates a sense of resolution and finality.

The tonic chord is the first chord in a key and establishes the tonal center of the music. It is typically used at the end of a phrase or section to create a sense of resolution.

The dominant chord is the fifth chord in a key and creates a sense of tension and instability. It is typically used before the tonic chord to create a sense of resolution.

The subdominant chord is the fourth chord in a key and adds color and variety to the progression. It is often used to transition between the tonic and dominant chords.

A cadence is a sequence of chords that creates a sense of resolution or finality. The most common cadence is the perfect cadence, which consists of a I-IV-V progression.

A plagal cadence is a sequence of chords that consists of a IV-I progression. It creates a sense of resolution, but it is less final than a perfect cadence.

A deceptive cadence is a sequence of chords that consists of a V-VI progression. It creates a sense of surprise or unexpectedness because the V chord resolves to the VI chord instead of the I chord.

A secondary dominant chord is a chord that is borrowed from a dominant key. It is used to create tension and instability in a chord progression.

A diminished chord is a chord that consists of a root, a third, and a fifth. It has a dark and dissonant sound and is often used to create tension in a chord progression.

An augmented chord is a chord that consists of a root, a third, and a fifth. It has a bright and dissonant sound and is often used to create tension in a chord progression.

A suspended chord is a chord that omits the third. It has a light and airy sound and is often used to create tension in a chord progression.

An inversion of a chord is a chord that is played in a different order. The root of the chord is moved to a different voice, and the other notes are rearranged accordingly.

A root position chord is a chord that has the root in the bass. This is the most common type of chord inversion.

A first inversion chord is a chord that has the third in the bass. This type of inversion is often used to create a more interesting and varied sound.

A second inversion chord is a chord that has the fifth in the bass. This type of inversion is often used to create a more dissonant and unstable sound.