So a major diatonic scale will contain the same notes as the key it is derived from. C major scale shown above contains all the notes in the key of C major - played in ascending order.
A major pentatonic scale would also use notes from within the key it is derived from - but only 5 of the seven notes would be used. Think of a scale as climbing or scaling a ladder. The key and type of scale determines how far apart the steps on the ladder are from one another. Pentatonic, or diatonic determined how many steps on the ladder. Each ladder is the same height an octave but the spacing for a 5 step ladder is going to be different that for a 7 step ladder.
To say that a piece is in the Key of A, would mean that usually most of the notes in the piece would follow the tonal rules of the A Major scale. In Indian music there are two styles that I am aware of, Carnatic and Hindustani. I have forgotten which is which, but in one of them the scale is set in unique ways for each piece where a unique scale is associated with a single raga. This is a different approach than the "western" tradition where by comparison there is a limited set of predefined scales that are used in almost every piece.
A scale is a set of notes with linear order. In common practice, there is a primary scale associated with each key or vice versa the theory is derived from the music; the theory is descriptive and is supposed to explain the way the music has been constructed. In CPP harmony, there are two common types of keys by pattern.
Each key may be moved to another pitch. There are major keys with a major scale which is 8 notes with a particular pattern. A scale repeats at an "octave" the historical name for a tone at double the frequency of another note.
I'm using C-major for notational convenience. There are chords associated with C-major. The "tonic" chord is C-E-G. This is the "home" chord and composers write music which sets up the expectation that this chord will be used to end a piece or section thereof. There are many chords with different usage or function associated with the key of C-major.
The "feeling" I don't know a good word for "auditory feeling" of being in C-major is most often indicated by music with chords F-major F-A-C followed by G-major followed by C-major.
There's much more. There are minor chords like a D-minor chord D-F-A the pattern is slightly different from a major chord and some pieces can end with D-minor followed by G-major followed by C-major. A minor key has a minor chord as its home chord. Minor keys are quite a bit more complex than major keys.
However, there is another and more important difference. Scale steps 6 and 7 notes F and G here are mutable. Each may occur with two different notes. Lowering a note is signaled by an appended b and raised by an appended called "flat" and "sharp" respectively. There are a bunch of common patterns that are described in various books.
There's much more, especially in the idea of writing for simultaneous melodies that sound good both individually or together counterpoint. There are also structural conventions for various types of pieces. It's big. For more and better I'd guess , check out various websites that do harmony.
There are some good if old because of copyright restrictions books available. I like Frank Shephard's book on harmony as well as Francis York's books on harmony and counterpoint. They are old but serviceable and free. There are lots of others.
A key usually refers to a collection of 7 notes that have a hierarchical ordering and specific functions; for example, the most important note in any key is the "tonic", which is the note where most pieces end, and gives the listener the feeling of repose. Other important notes in any key are the dominant and subdominant. Keys also have an implied harmonic structure - they allow for building chords basically 2, 3 or more notes, played together.
The chords are also called "tonic" or "dominant" etc depending on the "root" note that is used to build the chord; thus you have the tonic chord and the dominant chord, which are the most important of any key. Another important concept is "mode", which effectively modifies some of the notes in the key by raising or lowering them. A scale is basically an ordering of notes by steps, starting and ending with the tonic, going up or down.
Scales are usually technical exercises intended to be played or sung. A key is more of an abstract concept it's the "raw material" to write a tune, or to build a scale. You CAN play different scales with the same key signature. But that's a different question that would be too long to answer here. Key is the root note first note you start playing or singing the song or tonic scale is collection of notes with their own pattern. Academy Blog Song Library. Log in Sign up. Working out the difference Scales are a pattern of notes at an interval that means they will sound good together.
Chords Explained Chords are far more predetermined. Conclusion — Differences Between Chords and Scales It definitely helps to have a go at playing if you are trying to understand the difference, the best way is to dive in and try our Academy, which can help you to play chords and notes on a scale, and understand how it is different. Please follow and like us:. Related News May 1. Read More. April 3. March 2. Subscribe Subscribe to the newsletter and be the first to know about the latest events, new articles and videos!
Write Something. Leave a Reply Cancel reply You must be logged in to post a comment. But a song in the key of G could at the same time include several scales. For example, a guitarist playing a blues song in the key of A may use both the pentatonic minor and major scales. Another thing that separates keys and scales is that when we refer to a key it tends to be in major or minor. But with scales, there is a large diversity.
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