A jazz sus chord or dominant 9sus4 chord is a seventh chord on the fifth scale degree of the key with a suspended fourth and an added ninth. Functionally, it can be written as V9sus4 or V7sus9.
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Save. ISO 9001 is a set of international standards for management and verification of good quality management practices. ISO (International Organization for Standardization) is an international organization that certifies that businesses, government organizations and social entities meet certain common standards.