{"id":1251,"date":"2023-09-27T13:54:05","date_gmt":"2023-09-27T13:54:05","guid":{"rendered":"http:\/\/localhost\/ecole9ja\/?p=1251"},"modified":"2023-09-27T13:56:10","modified_gmt":"2023-09-27T13:56:10","slug":"week-8-jss-2-third-term-cultural-and-creative-art-cca-lesson-notes","status":"publish","type":"post","link":"https:\/\/ecolebooks.com\/nigeria\/posts\/week-8-jss-2-third-term-cultural-and-creative-art-cca-lesson-notes\/","title":{"rendered":"Week 8 – Jss 2 Third Term Cultural And Creative Art (CCA) Lesson Notes"},"content":{"rendered":"

CLASS; J S S 2 WEEK 8<\/strong>
\n\t\t\tTOPIC; INTERVALS.
\n<\/strong><\/p>\n

Interval (music)
\n<\/h2>\n

.
\n<\/em>\"\"
\n\t\tMelodic and harmonic intervals.\u00a0
\nIn\u00a0music theory, an\u00a0interval<\/strong>\u00a0is the difference between two\u00a0pitches.\u00a0An interval may be described as\u00a0horizontal<\/strong>, linear<\/strong>, or\u00a0melodic<\/strong>\u00a0if it refers to successively sounding tones, such as two adjacent pitches in a melody, and vertical<\/strong>\u00a0or\u00a0harmonic<\/strong>\u00a0if it pertains to simultaneously sounding tones, such as in a\u00a0chord.
\nIn\u00a0Western\u00a0music, intervals are most commonly differences between\u00a0notes\u00a0of a\u00a0diatonic scale. The smallest of these intervals is a\u00a0semitone. Intervals smaller than a semitone are called\u00a0microtones. They can be formed using the notes of various kinds of non-diatonic scales. Some of the very smallest ones are called\u00a0commas, and describe small discrepancies, observed in some\u00a0tuning systems, between\u00a0enharmonically equivalent\u00a0notes such as C\u266f\u00a0and D\u266d. Intervals can be arbitrarily small, and even imperceptible to the human ear.
\nIn physical terms, an interval is the\u00a0ratio\u00a0between two sonic frequencies. For example, any two notes an octave apart have a frequency ratio of 2:1. This means that successive increments of pitch by the same interval result in an exponential increase of frequency, even though the human ear perceives this as a linear increase in pitch. For this reason, intervals are often measured in\u00a0cents, a unit derived from the\u00a0logarithm\u00a0of the frequency ratio.
\nIn Western music theory, the most common naming scheme for intervals describes two properties of the interval: the\u00a0quality\u00a0(perfect, major, minor, augmented, and diminished) and\u00a0number\u00a0(unison, second, third, etc.). Examples include the\u00a0minor third\u00a0or\u00a0perfect fifth. These names describe not only the difference in semitones between the upper and lower notes, but also how the interval is spelled. The importance of spelling stems from the historical practice of differentiating the frequency ratios of enharmonic intervals such as G\u2013G\u266f\u00a0and G\u2013A\u266d.<\/p>\n

Main intervals.
\n\t\t\t\t<\/h2>\n

The table shows the most widely used conventional names for the intervals between the notes of a\u00a0chromatic scale. A\u00a0perfect unison\u00a0(also known as perfect prime)
\n\t\t\t<\/sup>is an interval formed by two identical notes. Its size is zero\u00a0cents. A\u00a0semitone\u00a0is any interval between two adjacent notes in a chromatic scale, a\u00a0whole tone\u00a0is an interval spanning two semitones (for example, a\u00a0major second), and a\u00a0triton\u00a0is an interval spanning three tones, or six semitones (for example, an\u00a0augmented fourth).\u00a0Rarely, the term\u00a0denote\u00a0is also used to indicate an interval spanning two whole tones (for example, a\u00a0major third), or more strictly as a synonym of major third.
\nIntervals with different names may span the same number of semitones, and may even have the same width. For instance, the interval from D to F\u266f\u00a0is a\u00a0major third, while that from D to G\u266d\u00a0is a\u00a0diminished fourth. However, they both span 4 semitones. If the\u00a0instrument\u00a0is tuned so that the 12 notes of the chromatic scale are equally spaced (as in\u00a0equal temperament), these intervals will also have the same width. Namely, all semitones will have a width of 100\u00a0cents, and all intervals spanning 4 semitones will be 400 cents wide.
\nThe names listed here cannot be determined by counting semitones alone. The rules to determine them are explained below. Other names, determined with different naming conventions, are listed in\u00a0a separate section. Intervals\u00a0smaller than one semitone\u00a0(commas or microtones) and\u00a0larger than one octave\u00a0(compound intervals) are introduced below.<\/p>\n

\u00a0<\/p>\n

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Number ofsemitones<\/strong><\/td>\nMinor, major,or perfect\u00a0intervals<\/strong><\/td>\nShort<\/strong><\/td>\nAugmented ordiminished\u00a0intervals<\/strong><\/td>\nShort<\/strong><\/td>\nWidely usedalternative names<\/strong><\/td>\nShort<\/strong><\/td>\nAudio<\/strong><\/td>\n<\/tr>\n
0<\/td>\nPerfect unison[5][7]<\/sup><\/td>\nP1<\/td>\nDiminished second<\/td>\nd2<\/td>\n\u00a0<\/td>\n\u00a0<\/td>\n\"\"\u00a0Play\u00a0(help info)<\/td>\n<\/tr>\n
1<\/td>\nMinor second<\/td>\nm2<\/td>\nAugmented unison[5][7]<\/sup><\/td>\nA1<\/td>\nSemitone,[8]<\/sup>\u00a0half tone, half step<\/td>\nS<\/td>\n\"\"\u00a0Play\u00a0(help info)<\/td>\n<\/tr>\n
2<\/td>\nMajor second<\/td>\nM2<\/td>\nDiminished third<\/td>\nd3<\/td>\nTone, whole tone, whole step<\/td>\nT<\/td>\n\"\"\u00a0Play\u00a0(help info)<\/td>\n<\/tr>\n
3<\/td>\nMinor third<\/td>\nm3<\/td>\nAugmented second<\/td>\nA2<\/td>\n\u00a0<\/td>\n\u00a0<\/td>\n\"\"\u00a0Play\u00a0(help info)<\/td>\n<\/tr>\n
4<\/td>\nMajor third<\/td>\nM3<\/td>\nDiminished fourth<\/td>\nd4<\/td>\n\u00a0<\/td>\n\u00a0<\/td>\n\"\"\u00a0Play\u00a0(help info)<\/td>\n<\/tr>\n
5<\/td>\nPerfect fourth<\/td>\nP4<\/td>\nAugmented third<\/td>\nA3<\/td>\n\u00a0<\/td>\n\u00a0<\/td>\n\"\"\u00a0Play\u00a0(help info)<\/td>\n<\/tr>\n
6<\/td>\n\u00a0<\/td>\n\u00a0<\/td>\nDiminished fifth<\/td>\nd5<\/td>\nTriton[6]<\/sup><\/td>\nTT<\/td>\n\"\"\u00a0Play\u00a0(help info)<\/td>\n<\/tr>\n
Augmented fourth<\/td>\nA4<\/td>\n<\/tr>\n
7<\/td>\nPerfect fifth<\/td>\nP5<\/td>\nDiminished sixth<\/td>\nd6<\/td>\n\u00a0<\/td>\n\u00a0<\/td>\n\"\"\u00a0Play\u00a0(help info)<\/td>\n<\/tr>\n
8<\/td>\nMinor sixth<\/td>\nm6<\/td>\nAugmented fifth<\/td>\nA5<\/td>\n\u00a0<\/td>\n\u00a0<\/td>\n\"\"\u00a0Play\u00a0(help info)<\/td>\n<\/tr>\n
9<\/td>\nMajor sixth<\/td>\nM6<\/td>\nDiminished seventh<\/td>\nd7<\/td>\n\u00a0<\/td>\n\u00a0<\/td>\n\"\"\u00a0Play\u00a0(help info)<\/td>\n<\/tr>\n
10<\/td>\nMinor seventh<\/td>\nm7<\/td>\nAugmented sixth<\/td>\nA6<\/td>\n\u00a0<\/td>\n\u00a0<\/td>\n\"\"\u00a0Play\u00a0(help info)<\/td>\n<\/tr>\n
11<\/td>\nMajor seventh<\/td>\nM7<\/td>\nDiminished octave<\/td>\nd8<\/td>\n\u00a0<\/td>\n\u00a0<\/td>\n\"\"\u00a0Play\u00a0(help info)<\/td>\n<\/tr>\n
12<\/td>\nPerfect octave<\/td>\nP8<\/td>\nAugmented seventh<\/td>\nA7<\/td>\n\u00a0<\/td>\n\u00a0<\/td>\n\"\"\u00a0Play\u00a0(help info)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

Interval number and quality
\n<\/h2>\n","protected":false},"excerpt":{"rendered":"

CLASS; J S S 2 WEEK 8 TOPIC; INTERVALS. Interval (music) . Melodic and harmonic…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1,120],"tags":[],"class_list":["post-1251","post","type-post","status-publish","format-standard","hentry","category-posts","category-third-term-jss2-fine-art"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/ecolebooks.com\/nigeria\/wp-json\/wp\/v2\/posts\/1251","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ecolebooks.com\/nigeria\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ecolebooks.com\/nigeria\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ecolebooks.com\/nigeria\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ecolebooks.com\/nigeria\/wp-json\/wp\/v2\/comments?post=1251"}],"version-history":[{"count":1,"href":"https:\/\/ecolebooks.com\/nigeria\/wp-json\/wp\/v2\/posts\/1251\/revisions"}],"predecessor-version":[{"id":1252,"href":"https:\/\/ecolebooks.com\/nigeria\/wp-json\/wp\/v2\/posts\/1251\/revisions\/1252"}],"wp:attachment":[{"href":"https:\/\/ecolebooks.com\/nigeria\/wp-json\/wp\/v2\/media?parent=1251"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ecolebooks.com\/nigeria\/wp-json\/wp\/v2\/categories?post=1251"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ecolebooks.com\/nigeria\/wp-json\/wp\/v2\/tags?post=1251"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}