Figuring scales from a chord progression

Figuring Scales from a Chord Progression

When analyzing a chord progression, it can be valuable to figure out the scales that correspond to the chords being used. Understanding the scales in a chord progression provides insights into the underlying key and helps musicians make informed melodic and harmonic choices. This article will outline a systematic approach to figuring out scales from a chord progression, drawing from reputable sources such as Music Stack Exchange, Puget Sound Music Theory, and Geneseo Publishing.

1. Spell out the chords correctly

The first step in determining the scales from a chord progression is to accurately spell out the chords. This involves listing all the notes present in each chord. Pay attention to the chord symbols and make sure to include any accidentals or alterations specified. By spelling out the chords correctly, you establish a solid foundation for identifying the scales.

2. Order the notes

Once you have spelled out the chords, the next step is to arrange the notes in ascending order, from the lowest to the highest pitch. This ordering of notes helps to create a complete set of tones that will be used in determining the scales. By organizing the notes in this way, you can more easily identify patterns and relationships between the chords and scales.

3. Look for a key/scale

After ordering the notes, it is time to search for a key or scale that fits the set of tones. Pay attention to the presence of sharps or flats in the chord progression, as they often indicate the key signature. Utilize your knowledge of key signatures to guide your search for the appropriate scale. If you are not familiar with key signatures, it is highly recommended to learn them, as they are crucial for accurately identifying scales and keys.

4. Learn key signatures

Having a solid understanding of key signatures is essential when determining scales and keys. Key signatures provide valuable information about the tonality of a piece and the scales that are commonly used. If you are unfamiliar with key signatures, take the time to study and learn them. This knowledge will greatly enhance your ability to identify scales and keys accurately.

5. Understand harmonic patterns

Becoming familiar with common diatonic chord patterns is instrumental in figuring out scales from a chord progression. Important harmonic patterns include the circle of fifths progression and the II-V-I or IV-V-I cadences in major and minor keys. Recognizing these patterns can provide valuable clues about the scale or key being used. By understanding the harmonic relationships between chords, you can more effectively determine the appropriate scale.

6. Recognize common patterns in different genres

Different musical genres often exhibit specific harmonic patterns. For instance, in rock music, the ♭VI ♭VII i progression is commonly used. It is essential to familiarize yourself with the conventions and patterns of the genre you are working with. Recognizing these common patterns will help you identify the scale or key more accurately and make appropriate musical choices within the genre.

7. Tonic identification

The ultimate goal in figuring out scales from a chord progression is to determine the tonic, which is the central tone of a key or the starting tone of a scale. Identifying the tonic can sometimes be challenging, as music can be ambiguous about the key or mode being used. In such cases, consider the style conventions of the music and any contextual information available to help determine the tonic. This determination will solidify your understanding of the scale and key being employed.

In conclusion, figuring out scales from a chord progression involves several steps, including spelling out the chords correctly, ordering the notes, looking for a key or scale, understanding harmonic patterns, recognizing genre-specific patterns, and identifying the tonic. By following this systematic approach and utilizing the resources cited below, musicians can gain a deeper understanding of the scales and keys present in a chord progression, enabling them to make more informed musical decisions.

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FAQs

How do I spell out chords correctly in a chord progression?



In order to spell out chords correctly, list all the notes present in each chord, including any accidentals or alterations specified in the chord symbols.

Why is it important to order the notes in a chord progression?

Ordering the notes in a chord progression from lowest to highest helps create a complete set of tones, making it easier to identify patterns and relationships between the chords and scales.

How can I determine the key or scale that fits the chord progression?

After ordering the notes, search for a key or scale that matches the set of tones. Pay attention to the presence of sharps or flats in the chord progression, as they often indicate the key signature.

Why is it essential to learn key signatures when figuring out scales?

Having a solid understanding of key signatures is crucial for accurately identifying scales and keys. Key signatures provide valuable information about tonality and the commonly used scales in a piece.

What are some important harmonic patterns to be aware of in chord progressions?



Familiarize yourself with essential diatonic chord patterns, such as the circle of fifths progression and the II-V-I or IV-V-I cadences in major and minor keys. Recognizing these patterns can provide clues about the scale or key being used.

How does recognizing common patterns in different genres help in figuring out scales?

Different musical genres often have specific harmonic patterns. Understanding the conventions and patterns of the genre you are working with can help you identify the scale or key more accurately and make appropriate musical choices.

How do I identify the tonic in a chord progression?

The tonic is the central tone of a key or the starting tone of a scale. Identifying the tonic can sometimes be challenging, but considering the style conventions of the music and any contextual information available can help determine the tonic.

What is the ultimate goal of figuring out scales from a chord progression?

The ultimate goal is to determine the scales and keys present in the chord progression, which provides valuable insights for making informed melodic and harmonic choices in musical compositions and improvisations.