Jisho

×
よんわおん 四和音
Links
Noun
1. tetrad​Music
Wikipedia definition
2. Tetrad (music)​A tetrad is a set of four notes in music theory. When these four notes form a tertian chord they are more specifically called a seventh chord, after the diatonic interval from the root of the chord to its fourth note (in root position close voicing). Four-note chords are often formed of intervals other than thirds in 20th- and 21st-century music, however, where they are more generally referred to as tetrads (see, for example, Hanson 1960,, Gamer 1967, 37 & 52, and Forte 1985, 48–51, 53).
Read “Tetrad (music)” on English Wikipedia
Read “四和音” on Japanese Wikipedia
Read “Tetrad (music)” on DBpedia

Discussions

to talk about this word.