what is a dominant scale
In music, the dominant is the fifth scale degree of the diatonic scale, called dominant because it is next in importance to the tonic, and a dominant chord is any chord built upon that pitch, using the notes of the same diatonic scale. The dominant is sung as so in solfege.ut another way, the key whose tonic is the dominant scale degree in the main key. If, for example, a piece is written in the key of C major, then the key of C is the tonic key. The key of G major is the dominant key since it is based on the dominant note for the key of C major.