What does a “Q” mean in a chord?
I saw a Chord called, “CQ” (I saw it on a Rick Beato YouTube Music theory video, that he skimmed past in; “How to unlock Melody from Harmony (modern musical composition concepts)”).
I would be very grateful if anyone knew what this meant & could tell me.
- ideaquestLv 76 months agoFavorite Answer
A new method for tracking modulations in tonal music in audio data format
Hendrik Purwins, Benjamin Blankertz, Klaus ObermayerPublished in Proceedings of the IEEE-INNS-ENNS International… 2000
Cq-profiles are 12-dimensional vectors, each component referring to a pitch class. They can be employed to represent keys. Cq-profiles are calculated with the constant Q filter bank. They have the following advantages:
1) they correspond to probe tone ratings;
2) calculation is possible in real-time;
3) stability is obtained with respect to sound quality; and
4) they are transposable.
By using the cq-profile technique as a simple auditory model in combination with the SOM, an arrangement of keys emerges, that resembles results from psychological experiments and from the music theory. Cq-profiles are reliably applied to modulation tracking by introducing a special distance measure.