| Subdominant |
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| CATEGORIES ABOUT SUBDOMINANT | |
| diatonic functions | |
| scale degrees | |
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A cadential subdominant chord followed by a tonic chord (the chord of the key of the piece) produces the so-called "plagal" (or "Amen") Cadence . "Subdominant" also refers to a relationship of musical keys. For example, relative to the key of C major, the key of F major is the subdominant. Music which modulates (changes key) often modulates into the subdominant when the Leading Tone is lowered by half step to the Subtonic (B to B in the key of C). Modulation into the subdominant key often creates a sense of musical relaxation; as opposed to modulation into Dominant (fifth note of the scale), which increases tension. In , there is a section written in the subdominant key, occurring at the point corresponding to the location in the Exposition where the music modulated into the dominant key. The use of the subdominant in this location often serves as a way of keeping the rest of recapitulation in the tonic. The subdominant Diatonic Function acts as a dominant preparation and in theories after Hugo Riemann is considered to balance the dominant around the tonic. |
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