{"id":60,"date":"2009-05-21T12:49:27","date_gmt":"2009-05-21T16:49:27","guid":{"rendered":"https:\/\/www.pbs.org\/wnet\/musicinstinct\/?p=60"},"modified":"2018-09-10T15:40:59","modified_gmt":"2018-09-10T19:40:59","slug":"physics-of-sound-intervals-and-harmonics","status":"publish","type":"post","link":"https:\/\/www.pbs.org\/wnet\/musicinstinct\/video\/interviews\/physics-of-sound-intervals-and-harmonics\/60\/","title":{"rendered":"Intervals and Harmonics"},"content":{"rendered":"<div style=\"width: 640px;\" class=\"wp-video\"><video class=\"wp-video-shortcode\" id=\"video-60-1\" width=\"640\" height=\"360\" preload=\"metadata\" controls=\"controls\"><source type=\"video\/mp4\" src=\"https:\/\/www.pbs.org\/wnet\/musicinstinct\/wp-content\/blogs.dir\/20\/files\/19-brian-greene.mp4?_=1\" \/><a href=\"https:\/\/www.pbs.org\/wnet\/musicinstinct\/wp-content\/blogs.dir\/20\/files\/19-brian-greene.mp4\">https:\/\/www.pbs.org\/wnet\/musicinstinct\/wp-content\/blogs.dir\/20\/files\/19-brian-greene.mp4<\/a><\/video><\/div>\n<p><strong>Brian Greene<\/strong>: Perhaps the most familiar kind of interval in music is the octave where you have C and another C They sound kind of the same but the second one is higher pitch relative to the first. Mathematically we know how those two waves, those two vibrations relate to one another. So when two notes are an octave apart the wavelength of one is twice the wavelength of the other or said differently the frequency of the higher one is twice the frequency of the lower one. So that is a very simple relationship between how quickly the note, the string if it is producing that note is vibrating, and if it\u2019s vibrating twice as fast, it\u2019ll be an octave higher.<\/p>\n<p>There\u2019s a lot of math in music in that the relationship between vibrations can be phrased mathematically. The art of music of course goes beyond the math in doing things that don\u2019t really come out of a formula, don\u2019t come out of some well defined system of going from one note to the next but using sort of creative genius to do things unexpectedly. That\u2019s where I think the music happens.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>https:\/\/www.pbs.org\/wnet\/musicinstinct\/wp-content\/blogs.dir\/20\/files\/19-brian-greene.mp4 Brian Greene: Perhaps the most familiar kind of interval in music is the octave where you have C and another C They sound kind of the same but the second one is higher pitch relative to the first. Mathematically we know how those two waves, those two vibrations relate to one another. So when [&hellip;]<\/p>\n","protected":false},"author":37,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[31,5037],"tags":[5063,5064,5065,8528,1198,600,5046],"class_list":["post-60","post","type-post","status-publish","format-standard","hentry","category-interviews","category-physics-of-sound","tag-brian-greene","tag-equations","tag-harmonics","tag-interviews","tag-math","tag-music","tag-physics"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.1.1 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Physics of Sound ~ Intervals and Harmonics | Music Instinct | PBS<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.pbs.org\/wnet\/musicinstinct\/video\/interviews\/physics-of-sound-intervals-and-harmonics\/60\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Physics of Sound ~ Intervals and Harmonics | Music Instinct | PBS\" \/>\n<meta property=\"og:description\" content=\"https:\/\/www.pbs.org\/wnet\/musicinstinct\/wp-content\/blogs.dir\/20\/files\/19-brian-greene.mp4 Brian Greene: Perhaps the most familiar kind of interval in music is the octave where you have C and another C They sound kind of the same but the second one is higher pitch relative to the first. 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So when [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.pbs.org\/wnet\/musicinstinct\/video\/interviews\/physics-of-sound-intervals-and-harmonics\/60\/\" \/>\n<meta property=\"og:site_name\" content=\"Music Instinct\" \/>\n<meta property=\"article:published_time\" content=\"2009-05-21T16:49:27+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2018-09-10T19:40:59+00:00\" \/>\n<meta name=\"author\" content=\"colin fitzpatrick\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"colin fitzpatrick\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" 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