Pitch inversion

[jfetter]

Interesting paper on pitch inversion and mirror universe.
https://jcer.com/index.php/jcj/article/download/903/892

 

[U101222]

Is the author in an asylum?

 

[Pano]

Panpsychism has been getting a lot of press lately, but this is a new pitch. (cough, cough)
HAs anyone listened to these mirror version songs? The author is correct that a melody is relative, it can be transposed into another key a remain the same melody. But a mirror image of the pitch? Strange.

 

[jfetter]

Ya its an is interesting concept, maybe try inverting and then change key.

I did a microcontroller pitch-to-midi controller back in the 80's using the MC68705. Maybe it would be easy in real-time using midi.
I think some early voice encryption used analog pitch inversion.


Is the copyright still in force if inverted?


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[Pano]

Ha ha, good question!
Maybe since it's a mirror version, the owner of the original song has to pay you.

 

[U101222]

Panpsychism has been getting a lot of press lately, but this is a new pitch. (cough, cough)
HAs anyone listened to these mirror version songs? The author is correct that a melody is relative, it can be transposed into another key a remain the same melody. But a mirror image of the pitch? Strange.

I have no problems with Panpsychism.

However, inverting a melody is a well known contrapuntal technique for deriving a related theme from a given one. For instance, in the works of Bach it was used extensively. There is nothing new in it. See for instance examples in the wikipedia page on the subject.

 

[jfetter]

I have to read up on it, not being a musician I think of music as an additive process consisting of many sine waves with different frequency and amplitude.
Additive synthesis sort of.
So the term 'pitch inversion' means to me a reference arbitrary frequency then transposing to another new reference frequency.
Again arbitrary shift decided by the transpose artist.

This would mean 'many universes' as opposed to a mirror universe.

 

[Pano]

Thanks Moncenigo. (It was a joke, BTW).

I did listen to the samples and they are quiet interesting if you can get past the awful midi synth sounds.