For many people, listening to music elicits such an emotional response that the idea of dredging it for statistics and structure can seem odd or even misguided. But knowing these patterns can give one a deeper more fundamental sense for how music works; for me this makes listening to music a lot more interesting. Of course, if you play an instrument or want to write songs, being aware of these things is obviously of great practical importance. For example, if a chord is found in a song, what can we say about the probability for what the next chord will be that comes after it?
In music theory , the key of a piece is the group of pitches, or scale , that forms the basis of a music composition in classical , Western art, and Western pop music. The group features a tonic note and its corresponding chords , also called a tonic or tonic chord , which provides a subjective sense of arrival and rest, and also has a unique relationship to the other pitches of the same group, their corresponding chords, and pitches and chords outside the group. The key may be in the major or minor mode, though musicians assume major when this is not specified, e. Popular songs are usually in a key, and so is classical music during the common practice period , around — Longer pieces in the classical repertoire may have sections in contrasting keys. Methods that establish the key for a particular piece can be complicated to explain and vary over music history. The key signature is not always a reliable guide to the key of a written piece. It does not discriminate between a major key and its relative minor; the piece may modulate to a different key; if the modulation is brief, it may not involve a change of key signature, being indicated instead with accidentals. Occasionally, a piece in a mode such as Mixolydian or Dorian is written with a major or minor key signature appropriate to the tonic, and accidentals throughout the piece.
Which chord progression?
Unless you count the microtones between what the notes in the genres many of us are most familiar with, there are only 12 notes in all of music. In addition, every song in western music is based around only one of these notes, as well as a mode — almost always major, which sounds happy, or minor, which does not. Spotify data analyst and jazz pianist Kenny Ning took it upon himself to analyze the key of every track on Spotify, to determine how frequently they appear, and we turned the result into a chart. More mysterious, at first glance anyway, is the order of the notes. Why is G Major the top key on all of Spotify? And why is C Major number two?
G Major and C Major rule all other keys. Within Western music, there are 12 basic musical tones, and each tone can represent both a major and a relative minor key, making 24 common keys available. Major keys are usually associated with happier emotions, while minor keys are often associated with sadness. Out of all keys available, G Major accounted for The initial takeaway from the data seems to suggest that people care for major keys, i. Ning does make sure to note that creating music is not all about the key signature, though. The 40 best movies on Hulu right now.