What is the difference between scales and keys in music?

Difference Between Keys and Scales?

You realize that the keys and scales are not the same. They are not the same, but in general - most of the scales are based on a specific key. Let me try to explain keys and scales in simple terms without going into music theory.

The keys determine the group of notes from which the composer must choose when composing the music. In western music there are twelve notes that exist between octaves. you are A (A # / Bb) BC (C # / Db) D (D # / Eb) EF (F # / Gb) G (G # / Ab) . The letters in brackets are the same note in practical use, as they are played on the piano for the same key or on the guitar for the same string / fret combination and in the same place on all instruments with a fixed tuning system. So there are keys on the piano that play a note called either A sharp (A #) or B flat major (Bb) - depending on which key you're on.

Of the twelve notes, only seven exist in each key. A key can be major or minor. The key signature indicates which notes of the music stick are to be considered (and played) as sharp or flat. The key of C major has no sharp or flat points, so the key does not show any sharp or flat points. The seven notes in the key C major are CDEFGA and B.

A scale is an ascending series of notes (each higher than the previous note) that span an octave. Scales are usually based on a key. The C major scale so would from the notes CDEFGA and B exist . To play a C major scale on an instrument, start with C and play CDEFGA and B. and finish the scale by pressing Play C an octave higher .

The following scale types each contain 7 notes: Major, Natural Minor, Harmonic Minor and Melodic Minor. The interval pattern between the notes (either full or half step / semitone) determines the type scale. These seven note scales are called the diatonic scales.

On a large diatonic scale (7 notes) the interval pattern is whole, very half, whole, very half. Whole is two semitones and half is one.

So there is a full (whole) step between the first two notes of a diatonic major scale and a full step between the 2nd and 3rd notes, but only half a step between the 3rd and 4th notes. In a natural minor scale, the intervals are half whole whole half whole whole.

Scales can also consist of 5 notes. 5-note scales are known as pentatonic scales, and they also include an octave. To span an octave with only 5 notes, larger steps or gaps are required between notes. Just like with diatonic scales, there are different types of pentatonic scales (i.e. major and minor), and again the pattern of interval between notes is determined by the type scale (or you could say the pattern determines the type of scale).

Other variations of scales can be invented by the musician to give his music a special taste.

In summary, the scales are played in ascending note order and are usually based on a specific key (with the exception of the chromatic scale, where all twelve possible notes are played in ascending order). The key determines which notes can be selected from for a particular scale. In general, scales contain notes derived from the key on which they are based. So a diatonic major scale contains the same notes as the key from which it is derived. The C major scale shown above contains all the notes in the key of C major - in ascending order.

A major pentatonic scale would also use notes from the key from which it is derived - but only 5 of the seven notes would be used.

Think of a scale as climbing or climbing a ladder. The key and type of scale determine how far apart the steps are on the ladder. Pentatonic or diatonic determined how many steps on the ladder were. Each ladder is the same height (one octave), but the spacing for a 5-step ladder is different from that for a 7-step ladder.

I hope it helps.