Can You Name the Interval? - Music Theory

Music Matters
20 Jun 201913:11
EducationalLearning
32 Likes 10 Comments

TLDRThis video quiz teaches how to identify musical intervals by counting scale degrees. It explains perfect, major, minor, augmented and diminished intervals. The instructor analyzes 10 example intervals, counting each one and determining if it is perfect, major, minor, augmented or diminished based on the key signature of the lower note. This exercise builds skills in interval identification, scale degree knowledge, and understanding how alterations affect interval quality.

Takeaways
  • 🎵 To name an interval, count from the bottom note to the top note, including both notes in the count.
  • 📖 Intervals of a fourth, fifth, and octave are classified as 'perfect'. Other intervals (second, third, sixth, seventh) are initially considered 'major'.
  • 📈 The quality of an interval is determined by the major scale of the lower note. If the upper note is in the major scale of the lower note, its initial quality (major or perfect) is confirmed.
  • 🔮 For intervals starting as major or perfect, if the top note is raised or lowered, the interval becomes augmented or diminished respectively.
  • 🎶 The terms 'major', 'minor', 'augmented', and 'diminished' describe the quality of intervals, with 'minor' being a semitone smaller than 'major'.
  • 🎹 Understanding key signatures is essential for identifying the quality of intervals, as it helps to determine whether the top note belongs to the major scale of the bottom note.
  • 📚 The Circle of Fifths can be a useful tool for learning and remembering key signatures, which is crucial for interval identification.
  • 📝 A 'compound interval' is any interval larger than an octave, and its quality is determined in the same way as smaller intervals, but it's named with the word 'compound' followed by the interval quality.
  • 🚨 To simplify the naming of compound intervals, you can mentally transpose the notes to within an octave of each other, then apply the rules for interval quality.
  • 🖥 Practice and familiarity with scales, key signatures, and the rules for interval qualities are essential for quick and accurate interval naming.
Q & A

  • What is the main purpose of this video?

    -The main purpose is to teach how to name musical intervals by counting lines and spaces and determining if an interval is perfect, major, minor etc.

  • What is the first interval that is analyzed and what type of interval is it?

    -The first interval is from C up to F, which is a perfect fourth.

  • What is the rule for determining if a fourth, fifth, or octave interval is perfect or major/minor?

    -If the upper note comes in the major scale of the lower note, it will be perfect if it's a fourth, fifth, or octave. Other intervals start out being major.

  • What is the second interval and what type is it?

    -The second interval is D up to B, which is a major sixth.

  • What should you do if you are unsure about the key when analyzing an interval?

    -You can use the circle of fifths to determine the key signature and notes in the scale if you are unsure.

  • What are the options if an interval is bigger than an octave?

    -If an interval is bigger than an octave, you can call it a compound interval and move the bottom or top note by an octave to simplify the analysis.

  • What happens to a perfect interval if it gets bigger by a semitone?

    -If a perfect interval gets bigger by a semitone, it becomes an augmented interval.

  • What happens to a major interval if it gets smaller by a semitone?

    -If a major interval gets smaller by a semitone, it becomes a minor interval.

  • What is the rule for minor and diminished intervals?

    -A minor interval can become a diminished interval if it gets one semitone smaller again.

  • What system is best for naming compound intervals?

    -Moving the bottom or top note by an octave and naming the simpler interval first (with compound before it) is an easy way to name compound intervals.

Outlines
00:00
😀 Identifying and Naming Intervals

This paragraph introduces interval identification and naming. It provides examples of identifying intervals as fourths, fifths, octaves etc. based on counting scale degrees. It explains naming intervals as perfect, major, minor, diminished or augmented based on the lower note's major scale.

05:02
😃 More Examples of Interval Identification

This paragraph continues interval identification examples, covering thirds, sixths, sevenths. It explains how intervals can change from major to minor or augmented/diminished by altering semitones.

10:02
😊 Identifying Compound Intervals

This paragraph covers identifying compound intervals larger than an octave. It explains moving one pitch up an octave to simplify identification. Examples of compound thirds, sixths are provided.

Mindmap
Keywords
💡interval
An interval refers to the distance between two musical notes. Identifying intervals is an important music theory concept discussed in the video. The narrator walks through examples of different intervals like perfect fourths, major sixths, and compound thirds.
💡scale
A scale is a sequence of ascending or descending musical notes. To identify the quality of an interval (major, minor, perfect, etc), you need to examine its notes in relation to a scale. The narrator frequently refers to the major scale of the lower note when analyzing intervals.
💡key
The key provides critical context for identifying intervals. The narrator emphasizes determining the key signature and notes of the lower note's major scale. This reveals if the upper note is found in that scale or altered, indicating the interval quality.
💡circle of fifths
The circle of fifths is a diagram showing key signatures and note relationships. The narrator suggests using the circle of fifths to deduce the key signature if you're unsure, which will help determine the interval.
💡perfect
Perfect intervals include fourths, fifths, and octaves. The narrator stresses these intervals are naturally perfect, so the upper note just needs to be found in the lower note's major scale to retain perfection.
💡major
Major intervals like seconds, thirds, sixths, and sevenths are the default quality. They become major if the upper note appears in the lower note's major scale.
💡minor
Minor intervals are a semitone smaller than major intervals. The narrator shows how E to G is a minor third because G natural is a semitone below G sharp in the key of E major.
💡diminished
Diminished intervals are a semitone smaller than perfect/minor intervals. The narrator demonstrates how E to G is diminished compared to the E to G# major third.
💡augmented
Augmented intervals are a semitone larger than perfect/major intervals. For example, the narrator shows how E to A# is an augmented fourth, larger than the perfect E to A fourth.
💡compound
A compound interval exceeds one octave. The narrator explains how to identify the basic interval quality by first moving a note up an octave, like calling a 10th a compound third.
Highlights

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Contributed substantially to the field of NLP with quality research

Transcripts

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