Dominant and sub-dominant refers to notes of a scale. The dominant is the fifth note (represented with a roman numeral, V) of a scale while the sub-dominant is the fourth (IV) note of that scale. For example, in scale of C major, the dominant is G and the sub-dominant is F.
The terms dominant ans sub-dominant can also refer to chords, scales or keys. A dominant chord is one that is built on a dominant note. Musically, the dominant chord is considered to be unstable and must be resolved. Therefore, a dominant chord can be used to build tension in a chord progression.
Dominant keys refer to the relationship between notes. For instance, key of G is the dominant key relative to C. Music that changes key often shifts between a tonic and its dominant.
In a major scale the subdominant chord is a major chord,thus the dominant chord is major7.
In a major key, the dominant (watch your spelling) is the 5th, and the subdominant is the 4th scale degree. So, in the key of C, F is the subdominant and G is the dominant.
D major(D,F#,A,D) for sub domonant, and E major(E,G#,B,E) for dominant
The subdominant note of E-flat minor is A-flat.
The subdominant triad of Eb major is the Ab major triad.
In a major scale the subdominant chord is a major chord,thus the dominant chord is major7.
The subdominant of F major A sharp (A#)
The sub-dominant of Db is Gb.
In a major key, the dominant (watch your spelling) is the 5th, and the subdominant is the 4th scale degree. So, in the key of C, F is the subdominant and G is the dominant.
Traditional harmony is based on the diatonic scale, particularly the major and minor modes. Cadences are resolved through the dominant and subdominant chords. Indeed some simple pieces with traditional harmony of this kind use only the chords of the dominant, subdominant and tonic.
D major(D,F#,A,D) for sub domonant, and E major(E,G#,B,E) for dominant
The subdominant in a scale is the 4th, which in the key of B-flat major is E-flat.
The tonic of E flat major is E flat. Its dominant is B flat and its subdominant is A flat.
Tonic, supertonic, mediant, subdominant, dominant, submediant, leading note, tonic again..
Tonic, supertonic, mediant, subdominant, dominant, submediant, leading note, tonic again..
The subdominant note of E-flat minor is A-flat.
The subdominant in any major scale is the fourth note. So, in C major, the subdominant is the F.