Published:
2003-01-01
Updated:
2023-06-09

Learning Ukulele with Curt

Key Signatures - D Major

In this lesson series, we explore the key of D Major and its relative minor key, Bm, including their primary and secondary chords, as well as a selection of common chord progressions.

Main Category: Theory Main Instrument: Any

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6 August 2026

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Key Signatures - D Major

In this lesson series, we explore the key of D Major and its relative minor key, Bm, including their primary and secondary chords, as well as a selection of common chord progressions.

This LessonSERIES cover the Key of D Major and it's Relative Minor Key, Bm.

Key Signatures

In the context of musical notation, a key signature is a representation of the sharps or flats that are present in a major or its corresponding natural minor scale. Key signatures can occur at other points in a score, especially after a double barline, but they are usually found right after the clef at the start of a musical staff.

While it is possible to construct key signatures using various combinations of sharp (♯) and flat (♭) symbols, the most commonly encountered ones consist of approximately a dozen diatonic major key signatures. These widely used key signatures are assumed in much of the musical repertoire. When a piece is scored using a single diatonic key signature without any accidentals, it encompasses notes from a maximum of seven of the twelve pitch classes. The particular seven pitch classes employed are determined by the specific key signature in use.

In this LessonSERIES , we delve into the intricacies of each major and relative minor key, exploring their primary and secondary chords, as well as providing examples of common chord progressions associated with each key. By mastering these concepts, you will gain a comprehensive understanding of key signatures and their role in music theory and composition.

4 lessons in the Key Signatures - D Major LessonSERIES :

    1

    Key Signatures - D Major and B Minor

    "D Major" (or the key of D) is a major scale based on D, consisting of the pitches D, E, F#, G, A, B, and C#. Its key signature consists of two sharps: F# and C#.

    Its relative minor is B minor and its parallel minor is D minor.

    2

    Primary Chords - D Major

    The primary chords for any major key are the I, IV, and V chords of its corresponding major scale. For D Major, the primary chords are: D, G, A, and A7.

    From the primary and secondary chords of a major key, countless songs and chords progressions can be played.

    3

    Secondary Chords - D Major

    The secondary chords for any major key are the II, III and VI chords of its corresponding major scale.

    4

    Common Chord Progressions for the Key of D

    Common chord progressions for the key of D. Using the primary and secondary chords for the key explore these common chord progressions for the key of D. D is one of the common keys that include C, G, D, A, and E.

Series Info

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Theory

Any

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UW-ML-Basic

The Principles of Music

Learn the very "basic", the foundation of music.