From 09fc2bc326c087a08011aaca253a10ab62aae949 Mon Sep 17 00:00:00 2001 From: mRcfps <1402491442@qq.com> Date: Sat, 14 Apr 2018 18:53:54 +0800 Subject: [PATCH] scale-generator: clarify docs. * Removed most mentions of terms that were irrelevant ("diminished interval") or undefined ("accidentals"). * Removed irrelevant table * Some light reformatting --- exercises/scale-generator/README.md | 25 +++++++++---------------- 1 file changed, 9 insertions(+), 16 deletions(-) diff --git a/exercises/scale-generator/README.md b/exercises/scale-generator/README.md index 149e7b21a8..0605364337 100644 --- a/exercises/scale-generator/README.md +++ b/exercises/scale-generator/README.md @@ -4,13 +4,13 @@ Given a tonic, or starting note, and a set of intervals, generate the musical scale starting with the tonic and following the specified interval pattern. -Scales in Western music are based on the chromatic (12-note) scale.This +Scales in Western music are based on the chromatic (12-note) scale. This scale can be expressed as the following group of pitches: A, A#, B, C, C#, D, D#, E, F, F#, G, G# -A given sharp note (indicated by a #), can also be expressed as the flat -of the note above it (indicated by a b), so the chromatic scale can also be +A given sharp note (indicated by a #) can also be expressed as the flat +of the note above it (indicated by a b) so the chromatic scale can also be written like this: A, Bb, B, C, Db, D, Eb, E, F, Gb, G, Ab @@ -20,9 +20,9 @@ collection. They have seven pitches, and are called diatonic scales. The collection of notes in these scales is written with either sharps or flats, depending on the tonic. Here is a list of which are which: -No Accidentals: +No Sharps or Flats: C major -A minor +a minor Use Sharps: G, D, A, E, B, F# major @@ -43,17 +43,10 @@ a "whole step" or "major second" (written as an upper-case "M"). The diatonic scales are built using only these two intervals between adjacent notes. -Non-diatonic scales can contain the same letter twice, and can contain other intervals. -Sometimes they may be smaller than usual (diminished, written "D"), or larger -(augmented, written "A"). Intervals larger than an augmented second have other names. - -Here is a table of pitches with the names of their interval distance from the tonic (A). - -| A | A# | B | C | C# | D | D# | E | F | F# | G | G# | A | -|:------:|:-------:|:-------:|:-------:|:-------:|:-------:|:-------:|:-------:|:-------:|:-------:|:-------:|:-------:|:------:| -| Unison | Min 2nd | Maj 2nd | Min 3rd | Maj 3rd | Per 4th | Tritone | Per 5th | Min 6th | Maj 6th | Min 7th | Maj 7th | Octave | -| | | Dim 3rd | Aug 2nd | Dim 4th | | Aug 4th | Dim 5th | Aug 5th | Dim 7th | Aug 6th | Dim 8ve | | -| | | | | | | Dim 5th | | | | | | | +Non-diatonic scales can contain other intervals. An "augmented first" +interval, written "A", has two interceding notes (e.g., from A to C or +Db to E). There are also smaller and larger intervals, but they will not +figure into this exercise. ## Exception messages