Heptatonia Secunda

The term Heptatonia Secunda (also Second Seven Steps ) describes a system of different, heptatonic modes of the acoustic scale . The derived modes are often used in jazz , but in the harmonics there , melodic minor is regarded as the mother scale.

Derivation

The system of the church modes consists - in simplified terms - of different modes that are created by changing the keynote of the diatonic base scale in C major . This system can also be called Heptatonia prima . Analogous to this, a second system can be formed, which is also built up heptatonic and diatonic (in the broader sense), i.e. represents a second type of seven-step scale, and uses the acoustic scale as the base scale.

Derived modes

Here are the derived modes of the acoustic scale including their mostly English terms, which are often used in jazz harmony:

literature

• Zsolt Gárdonyi , Hubert Nordhoff: Harmonics. Revised and expanded new edition. Möseler, Wolfenbüttel 2002, ISBN 3-7877-3035-4 , pp. 174-176.