{"id":10731,"date":"2015-12-06T00:00:00","date_gmt":"2015-12-06T08:00:00","guid":{"rendered":"http:\/\/www.hearandplay.com\/main\/?p=10731"},"modified":"2024-10-16T05:03:13","modified_gmt":"2024-10-16T13:03:13","slug":"forming-seventh-chords-dissonant-intervals","status":"publish","type":"post","link":"https:\/\/hearplaymain.wpenginepowered.com\/forming-seventh-chords-dissonant-intervals\/","title":{"rendered":"Forming Seventh Chords Using Diatonic Dissonant Intervals"},"content":{"rendered":"<p>Intervals are used as building blocks in chord construction. This makes them harmonic devices that anyone desiring to build chords can depend on. Chords, irrespective of their quantity (or &#8220;width,&#8221; e.g. &#8211; <em>7th, 9th, 11th, 13th, etc.<\/em>), can be broken down into intervals. These intervals are known as <em>intervallic components<\/em>. Today&#8217;s lesson focuses on dissonant intervals in particular and their role in building seventh chords.<\/p>\n<p>Consider the C major triad:<br \/>\n<img decoding=\"async\" src=\"https:\/\/hearandplay.cc\/dynamic_image\/pianokeys.php?notes=C,E,G&amp;color=FF0033&amp;size=2\" border=\"0\" alt=\"diatonic dissonant intervals\" \/><\/p>\n<p>It can be broken down into:<br \/>\nC-E (Major third)<br \/>\n<img decoding=\"async\" src=\"https:\/\/hearandplay.cc\/dynamic_image\/pianokeys.php?notes=C,E&amp;color=FF0033&amp;size=2\" border=\"0\" \/><\/p>\n<p>C-G (Perfect fifth)<br \/>\n<img decoding=\"async\" src=\"https:\/\/hearandplay.cc\/dynamic_image\/pianokeys.php?notes=C,G&amp;color=FF0033&amp;size=2\" border=\"0\" \/><\/p>\n<p>In a previous post, <a href=\"https:\/\/www.hearandplay.com\/main\/diatonic-dissonant-intervals\">The Relationship Between Dissonant Intervals<\/a>, we covered dissonant intervals thoroughly and established the relationship between sevenths and seconds. In this article, we\u2019ll focus more on how we can use these intervals in chord construction.<\/p>\n<h2><strong>TERTIAN HARMONY<\/strong><\/h2>\n<p>A chord is basically a combination of notes. Here&#8217;s the C major chord again:<br \/>\n<img decoding=\"async\" src=\"https:\/\/hearandplay.cc\/dynamic_image\/pianokeys.php?notes=C,E,G&amp;color=FF0033&amp;size=2\" border=\"0\" \/><\/p>\n<p>The notes of a chord (like C, E and G in the example above) are called <em>chord tones<\/em>. This chord is a product of tertian harmony. In tertian harmony, chord tones are stacked in thirds.<\/p>\n<p>For example, if we stack thirds from the major scale of C, we\u2019ll have a triad:<br \/>\n<img decoding=\"async\" src=\"https:\/\/hearandplay.cc\/dynamic_image\/pianokeys.php?notes=C,E,G&amp;color=FF0033&amp;size=2\" border=\"0\" \/><br \/>\nThe triad is built off the first, third and fifth degrees of the scale.<\/p>\n<p>If by happenstance or choice, we decide to add another third, we\u2019ll have a seventh chord:<br \/>\n<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/hearandplay.cc\/dynamic_image\/pianokeys.php?notes=C,E,G,B&amp;color=FF0033&amp;size=2\" border=\"0\" height=\"176\" width=\"281\" \/><\/p>\n<p>The reason why it is called seventh chord is because:<\/p>\n<ol>\n<li>It encompasses <strong>seven<\/strong> diatonic degrees &#8211; C, D, E, F, G, A and B<\/li>\n<li>It is built off the first, third, fifth and <strong>SEVENTH<\/strong> degrees of the scale.<\/li>\n<\/ol>\n<p>Now, we&#8217;ve found the <strong>seventh<\/strong>. In terms of chord construction, the <em>seventh<\/em> comes before the <em>second<\/em> in importance.<\/p>\n<p>This doesn&#8217;t reduce the importance of the second. We\u2019ll still find the second useful as a compound interval \u2013 ninth. The ninth is a bigger variation of the second. <\/p>\n<p><img decoding=\"async\" src=\"https:\/\/hearandplay.cc\/dynamic_image\/pianokeys.php?notes=C,D&amp;color=FF0033&amp;size=2\" border=\"0\" \/><\/p>\n<p>The interval above (C-D) can be played as:<br \/>\n<img decoding=\"async\" src=\"https:\/\/hearandplay.cc\/dynamic_image\/pianokeys.php?notes=C,o,D&amp;color=FF0033&amp;size=2\" border=\"0\" \/><\/p>\n<p>The occurrence of the seventh before the second (ninth) in tertian harmony will narrow our application to sevenths only. However, this does not exclude seconds from our study, considering that all sevenths are potential seconds.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/hearandplay.cc\/dynamic_image\/pianokeys.php?notes=C,B&amp;color=FF0033&amp;size=2\" border=\"0\" height=\"176\" width=\"281\" \/><\/p>\n<p>E.g. C-B (a seventh) above is a potential second. If inverted, C-B will become B-C (a second), as we learned in <a href=\"https:\/\/www.hearandplay.com\/main\/diatonic-dissonant-intervals\">this past lesson<\/a>.<br \/>\n<img decoding=\"async\" src=\"https:\/\/hearandplay.cc\/dynamic_image\/pianokeys.php?notes=B,C&amp;color=FF0033&amp;size=2\" border=\"0\" \/><\/p>\n<p>Therefore, ALL the sevenths we&#8217;ll explore in this course are potential seconds.<\/p>\n<h2><strong>SEVENTHS<\/strong><\/h2>\n<p>There are two interval qualities of sevenths, the major seventh and the minor seventh. If you are not familiar with these seventh qualities, don&#8217;t worry. I&#8217;ll show you, step by step, how you can form these intervals using the Interval Shrinking Technique. <\/p>\n<p>The <strong>Interval Shrinking Technique<\/strong> is the reduction of the size of an interval by <em>raising the lower (bass) note<\/em> or <em>lowering the higher (melody) note<\/em> using a given melodic progression. Let\u2019s look at the two approaches to this.<\/p>\n<p><strong> Approach #1<\/strong> &#8211; Raising the lower (bass) note.<\/p>\n<p>Using the octave of C:<br \/>\n<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/hearandplay.cc\/dynamic_image\/pianokeys.php?notes=C,C&amp;color=FF0033&amp;size=2\" border=\"0\" height=\"176\" width=\"561\" \/><\/p>\n<p>&#8230;raising the lower C will yield D\u266d-C.<br \/>\n<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/hearandplay.cc\/dynamic_image\/pianokeys.php?notes=Db,C&amp;color=FF0033&amp;size=2\" border=\"0\" height=\"176\" width=\"561\" \/><\/p>\n<p>This gives you D\u266d-C (an interval that is less than an octave).<\/p>\n<p><strong>Approach #2<\/strong> &#8211; Lowering the higher note.<\/p>\n<p>Using the octave of C:<br \/>\n<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/hearandplay.cc\/dynamic_image\/pianokeys.php?notes=C,C&amp;color=FF0033&amp;size=2\" border=\"0\" height=\"176\" width=\"561\" \/><\/p>\n<p>&#8230;lowering the higher C will yield C-B.<br \/>\n<img decoding=\"async\" src=\"https:\/\/hearandplay.cc\/dynamic_image\/pianokeys.php?notes=C,B&amp;color=FF0033&amp;size=2\" border=\"0\" \/><\/p>\n<p>This gives you C-B (another interval that is less than an octave).<\/p>\n<p><strong><span style=\"color: #ff0000\">Note:<\/span><\/strong><br \/>\n<em> Interval Shrinking Technique<\/em> can also yield the <strong>diminished octave<\/strong>. The following intervals are NOT Major Sevenths even though they sound the same.<\/p>\n<p>For example, using the first approach, we can raise the lower note to yield C\u266f-C:<br \/>\n<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/hearandplay.cc\/dynamic_image\/pianokeys.php?notes=Cs,C&amp;color=FF0033&amp;size=2\" border=\"0\" height=\"176\" width=\"561\" \/><\/p>\n<p>Using the second approach, we can lower the higher note to yield C-C\u266d:<br \/>\n<img decoding=\"async\" src=\"https:\/\/hearandplay.cc\/dynamic_image\/pianokeys.php?notes=C,Cb&amp;color=FF0033&amp;size=2\" border=\"0\" \/><\/p>\n<p>There are musical similarities to the major seventh and the diminished octave. If you want to know the similarities and differences between major sevenths and diminished octaves, I\u2019ll recommend our upcoming <a href=\"https:\/\/www.hearandplay.com\/main\/hearandplay130\">HearandPlay 130 \u2013 Intervals<\/a> course for you. <\/p>\n<h3><strong>THE BETTER APPROACH TO OCTAVE SHRINKING<\/strong><\/h3>\n<p>Now that we\u2019ve covered the Octave Shrinking Technique using two distinct approaches, let me show you the better approach and also explain why.<\/p>\n<p><strong>The First Approach<\/strong> gave us a D\u266d Major 7th interval:<br \/>\n<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/hearandplay.cc\/dynamic_image\/pianokeys.php?notes=Db,C&amp;color=FF0033&amp;size=2\" border=\"0\" height=\"176\" width=\"561\" \/><\/p>\n<p><strong>The Second Approach<\/strong> yielded a C Major 7th interval:<br \/>\n<img decoding=\"async\" src=\"https:\/\/hearandplay.cc\/dynamic_image\/pianokeys.php?notes=C,B&amp;color=FF0033&amp;size=2\" border=\"0\" \/><\/p>\n<p>Each approach shrinks an octave and gives us a <em>major seventh<\/em> interval. However, the second approach is preferable. This is because it gives us a major seventh on the given key (C Major) as opposed to the first approach that gave us a major seventh on a different key (D\u266d Major). Therefore, we\u2019ll shrink the octave In this lesson by lowering the higher note (using the second approach).<\/p>\n<h2><strong>SEVENTH QUALITIES<\/strong><\/h2>\n<p>Diatonic dissonant intervals have two seventh qualities \u2013 major and minor. We can derive each quality of seventh using the octave shrinking technique. It\u2019s easier than it sounds.<\/p>\n<h3><strong>Major Seventh Intervals<\/strong><\/h3>\n<p>Shrinking of the octave by a semitone progression (or half step) will yield a major seventh interval.<br \/>\nTherefore,<\/p>\n<p>Producing the C major seventh interval is as easy as shrinking an Octave of C by a semitone progression (half step):<br \/>\n<img decoding=\"async\" src=\"https:\/\/hearandplay.cc\/dynamic_image\/pianokeys.php?notes=C,B&amp;color=FF0033&amp;size=2\" border=\"0\" \/><\/p>\n<p>Forming a D\u266d major seventh interval is as easy as shrinking an Octave of D\u266d by a semitone progression:<br \/>\n<img decoding=\"async\" src=\"https:\/\/hearandplay.cc\/dynamic_image\/pianokeys.php?notes=Db,C&amp;color=FF0033&amp;size=2\" border=\"0\" \/><\/p>\n<p>D Major seventh interval is as easy as shrinking an Octave of D by a semitone progression.<br \/>\n<img decoding=\"async\" src=\"https:\/\/hearandplay.cc\/dynamic_image\/pianokeys.php?notes=D,Cs&amp;color=FF0033&amp;size=2\" border=\"0\" \/><\/p>\n<p>E\u266d Major seventh interval is as easy as shrinking an Octave of E\u266d by a semitone progression.<br \/>\n<img decoding=\"async\" src=\"https:\/\/hearandplay.cc\/dynamic_image\/pianokeys.php?notes=Eb,D&amp;color=FF0033&amp;size=2\" border=\"0\" \/><\/p>\n<p>If we go on and on, we\u2019ll have major seventh intervals on ALL the keys with little to no effort.<\/p>\n<h3><strong>Minor Seventh Intervals<\/strong><\/h3>\n<p>Shrinking of the octave by a wholetone progression will yield a minor seventh interval.<\/p>\n<p>Therefore&#8230;<\/p>\n<p>C Minor seventh interval is as easy as shrinking an Octave of C by a wholetone progression.<br \/>\n<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/hearandplay.cc\/dynamic_image\/pianokeys.php?notes=C,Bb&amp;color=FF0033&amp;size=2\" border=\"0\" height=\"176\" width=\"281\" \/><\/p>\n<p>C\u266f Minor seventh interval is as easy as shrinking an Octave of C\u266f by a wholetone progression.<br \/>\n<img decoding=\"async\" src=\"https:\/\/hearandplay.cc\/dynamic_image\/pianokeys.php?notes=Cs,B&amp;color=FF0033&amp;size=2\" border=\"0\" \/><\/p>\n<p>D Minor seventh interval is as easy as shrinking an Octave of D by a wholetone progression.<br \/>\n<img decoding=\"async\" src=\"https:\/\/hearandplay.cc\/dynamic_image\/pianokeys.php?notes=D,C&amp;color=FF0033&amp;size=2\" border=\"0\" \/><\/p>\n<p>D\u266f Minor seventh interval is as easy as shrinking an Octave of D\u266f by a wholetone progression.<br \/>\n<img decoding=\"async\" src=\"https:\/\/hearandplay.cc\/dynamic_image\/pianokeys.php?notes=Ds,Cs&amp;color=FF0033&amp;size=2\" border=\"0\" \/><\/p>\n<p>That\u2019s how we can derive minor seventh intervals on ALL the keys with little to no effort.<\/p>\n<h2><strong>SEVENTH CHORDS FROM SEVENTH INTERVALS<\/strong><\/h2>\n<p>Right from the beginning of this lesson, I\u2019ve always emphasized that intervals are components of chords. Now that we have learned two diatonic dissonant intervals \u2013 major seventh and minor seventh, let\u2019s get into chord formation using these intervals.<\/p>\n<h3><strong>Chord Formation #1<\/strong> \u2013 Major Seventh Chord<\/h3>\n<p>Using the formula below, we can derive the major seventh chord on any key.<\/p>\n<p>Major Triad + Major 7th interval = Major 7th Chord.<\/p>\n<p><strong>Example 1<\/strong><br \/>\nC Major Triad (C-E-G)<br \/>\n<img decoding=\"async\" src=\"https:\/\/hearandplay.cc\/dynamic_image\/pianokeys.php?notes=C,E,G&amp;color=FF0033&amp;size=2\" border=\"0\" \/><\/p>\n<p>+ C Major Seventh interval (C-B)<br \/>\n<img decoding=\"async\" src=\"https:\/\/hearandplay.cc\/dynamic_image\/pianokeys.php?notes=C,B&amp;color=FF0033&amp;size=2\" border=\"0\" \/><\/p>\n<p>= C Major Seventh Chord (C-E-G-B)<br \/>\n<img decoding=\"async\" src=\"https:\/\/hearandplay.cc\/dynamic_image\/pianokeys.php?notes=C,E,G,B,&amp;color=FF0033&amp;size=2\" border=\"0\" \/><\/p>\n<p><strong>Example 2<\/strong><br \/>\nB Major Triad (B-D\u266f-F\u266f)<br \/>\n<img decoding=\"async\" src=\"https:\/\/hearandplay.cc\/dynamic_image\/pianokeys.php?notes=B,Ds,Fs&amp;color=FF0033&amp;size=2\" border=\"0\" \/><\/p>\n<p>+ B Major Seventh interval (B-A\u266f)<br \/>\n<img decoding=\"async\" src=\"https:\/\/hearandplay.cc\/dynamic_image\/pianokeys.php?notes=B,As&amp;color=FF0033&amp;size=2\" border=\"0\" \/><\/p>\n<p>= B Major Seventh Chord (B-D\u266f-F\u266f-A\u266f)<br \/>\n<img decoding=\"async\" src=\"https:\/\/hearandplay.cc\/dynamic_image\/pianokeys.php?notes=B,Ds,Fs,As&amp;color=FF0033&amp;size=2\" border=\"0\" \/><\/p>\n<p><strong>Example 3<\/strong><br \/>\nA Major Triad (A-C\u266f-E)<br \/>\n<img decoding=\"async\" src=\"https:\/\/hearandplay.cc\/dynamic_image\/pianokeys.php?notes=A,Cs,E&amp;color=FF0033&amp;size=2\" border=\"0\" \/><\/p>\n<p>+ A Major Seventh interval (A-G\u266f)<br \/>\n<img decoding=\"async\" src=\"https:\/\/hearandplay.cc\/dynamic_image\/pianokeys.php?notes=A,Gs&amp;color=FF0033&amp;size=2\" border=\"0\" \/><\/p>\n<p>= A Major Seventh Chord (A-C\u266f-E-G\u266f)<br \/>\n<img decoding=\"async\" src=\"https:\/\/hearandplay.cc\/dynamic_image\/pianokeys.php?notes=A,Cs,E,Gs&amp;color=FF0033&amp;size=2\" border=\"0\" \/><\/p>\n<h3><strong>Chord Formation #2<\/strong> \u2013 Minor Seventh Chord<\/h3>\n<p>Using the formula below, we can derive the minor seventh chord on any key.<\/p>\n<p>Minor Triad + Minor 7th interval = Minor 7th Chord.<\/p>\n<p><strong>Example 1<\/strong><br \/>\nC Minor Triad (C-E\u266d-G)<br \/>\n<img decoding=\"async\" src=\"https:\/\/hearandplay.cc\/dynamic_image\/pianokeys.php?notes=C,Eb,G&amp;color=FF0033&amp;size=2\" border=\"0\" \/><\/p>\n<p>+ C Minor Seventh interval (C-B\u266d)<br \/>\n<img decoding=\"async\" src=\"https:\/\/hearandplay.cc\/dynamic_image\/pianokeys.php?notes=C,Bb&amp;color=FF0033&amp;size=2\" border=\"0\" \/><\/p>\n<p>= C Minor Seventh Chord (C-E\u266d-G-B\u266d)<br \/>\n<img decoding=\"async\" src=\"https:\/\/hearandplay.cc\/dynamic_image\/pianokeys.php?notes=C,Eb,G,Bb,&amp;color=FF0033&amp;size=2\" border=\"0\" \/><\/p>\n<p><strong>Example 2<\/strong><br \/>\nB Minor Triad (B-D-F\u266f)<br \/>\n<img decoding=\"async\" src=\"https:\/\/hearandplay.cc\/dynamic_image\/pianokeys.php?notes=B,D,Fs&amp;color=FF0033&amp;size=2\" border=\"0\" \/><\/p>\n<p>+ B Minor Seventh interval (B-A)<br \/>\n<img decoding=\"async\" src=\"https:\/\/hearandplay.cc\/dynamic_image\/pianokeys.php?notes=B,A&amp;color=FF0033&amp;size=2\" border=\"0\" \/><\/p>\n<p>= B Minor Seventh Chord (B-D-F\u266f-A)<br \/>\n<img decoding=\"async\" src=\"https:\/\/hearandplay.cc\/dynamic_image\/pianokeys.php?notes=B,D,Fs,A&amp;color=FF0033&amp;size=2\" border=\"0\" \/><\/p>\n<p><strong>Example 3<\/strong><br \/>\nA Minor Triad (A-C-E)<br \/>\n<img decoding=\"async\" src=\"https:\/\/hearandplay.cc\/dynamic_image\/pianokeys.php?notes=A,C,E&amp;color=FF0033&amp;size=2\" border=\"0\" \/><\/p>\n<p>+ A Minor Seventh interval (A-G)<br \/>\n<img decoding=\"async\" src=\"https:\/\/hearandplay.cc\/dynamic_image\/pianokeys.php?notes=A,G&amp;color=FF0033&amp;size=2\" border=\"0\" \/><\/p>\n<p>= A Minor Seventh Chord (A-C-E-G)<br \/>\n<img decoding=\"async\" src=\"https:\/\/hearandplay.cc\/dynamic_image\/pianokeys.php?notes=A,C,E,G&amp;color=FF0033&amp;size=2\" border=\"0\" \/><\/p>\n<h3><strong>Chord Formation #3<\/strong> \u2013 Dominant Seventh Chord<\/h3>\n<p>Using the formula below, we can derive the dominant seventh chord on any key.<\/p>\n<p>Major Triad + Minor 7th interval = Dominant 7th Chord.<\/p>\n<p><strong>Example 1<\/strong><br \/>\nC Major Triad (C-E-G)<br \/>\n<img decoding=\"async\" src=\"https:\/\/hearandplay.cc\/dynamic_image\/pianokeys.php?notes=C,E,G&amp;color=FF0033&amp;size=2\" border=\"0\" \/><\/p>\n<p>+ C Minor Seventh interval (C-B\u266d)<br \/>\n<img decoding=\"async\" src=\"https:\/\/hearandplay.cc\/dynamic_image\/pianokeys.php?notes=C,Bb&amp;color=FF0033&amp;size=2\" border=\"0\" \/><\/p>\n<p>= C Dominant Seventh Chord (C-E-G-B\u266d)<br \/>\n<img decoding=\"async\" src=\"https:\/\/hearandplay.cc\/dynamic_image\/pianokeys.php?notes=C,E,G,Bb&amp;color=FF0033&amp;size=2\" border=\"0\" \/><\/p>\n<p><strong>Example 2<\/strong><br \/>\nB Major Triad (B-D\u266f-F\u266f)<br \/>\n<img decoding=\"async\" src=\"https:\/\/hearandplay.cc\/dynamic_image\/pianokeys.php?notes=B,Ds,Fs&amp;color=FF0033&amp;size=2\" border=\"0\" \/><\/p>\n<p>+ B Minor Seventh interval (B-A) =<br \/>\n<img decoding=\"async\" src=\"https:\/\/hearandplay.cc\/dynamic_image\/pianokeys.php?notes=B,A&amp;color=FF0033&amp;size=2\" border=\"0\" \/><\/p>\n<p>B Dominant Seventh Chord (B-D\u266f-F\u266f-A)<br \/>\n<img decoding=\"async\" src=\"https:\/\/hearandplay.cc\/dynamic_image\/pianokeys.php?notes=B,Ds,Fs,A&amp;color=FF0033&amp;size=2\" border=\"0\" \/><\/p>\n<p><strong>Example 3<\/strong><br \/>\nA Major Triad (A-C\u266f-E)<br \/>\n<img decoding=\"async\" src=\"https:\/\/hearandplay.cc\/dynamic_image\/pianokeys.php?notes=A,Cs,E&amp;color=FF0033&amp;size=2\" border=\"0\" \/><\/p>\n<p>+ A Minor Seventh interval (A-G)<br \/>\n<img decoding=\"async\" src=\"https:\/\/hearandplay.cc\/dynamic_image\/pianokeys.php?notes=A,G&amp;color=FF0033&amp;size=2\" border=\"0\" \/><\/p>\n<p>= A Dominant Seventh Chord (A-C\u266f-E-G)<br \/>\n<img decoding=\"async\" src=\"https:\/\/hearandplay.cc\/dynamic_image\/pianokeys.php?notes=A,Cs,E,G&amp;color=FF0033&amp;size=2\" border=\"0\" \/><\/p>\n<h2><strong>Final Words<\/strong><\/h2>\n<p>From this post, you&#8217;ve learned how to play major and minor seventh intervals and how to effortlessly use them in the construction of chords. I want to recommend that you practice chord formation in all the keys on your own.<\/p>\n<p>P.S.<\/p>\n<p>All these seventh chords are dissonant. Their dissonant property is inherited from <a href=\"https:\/\/www.hearandplay.com\/main\/diatonic-dissonant-intervals\">diatonic dissonant intervals<\/a>. Practically, the major and minor seventh have tolerable dissonance while the dominant seventh chord sounds extremely dissonant. In subsequent articles, you&#8217;ll find out why.<\/p>\n<p>I&#8217;ll see you next time.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Learn the role of diatonic dissonant intervals in forming seventh chords like major 7ths, minor 7ths, and dominant 7ths, and more.<\/p>\n","protected":false},"author":9,"featured_media":23023,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[25,9],"tags":[17,1840,1848,666,1849,1845,1846,272,1847,240,192],"class_list":["post-10731","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-chords-progressions","category-piano","tag-basic-songs","tag-diatonic-dissonant-intervals","tag-dominant-7th","tag-dominant-seventh","tag-forming-chords-with-dissonant-intervals","tag-forming-seventh-chords","tag-major-7th","tag-major-seventh","tag-minor-7th","tag-minor-seventh","tag-seventh-chords","post-wrapper","thrv_wrapper"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Forming Seventh Chords Using Diatonic Dissonant Intervals - Hear and Play Music Learning Center<\/title>\n<meta name=\"description\" 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