I found some news about a new, physically modelled, Trumpet sound for the Sylphyo (and Anyma) in the updates about the Anyma Omega on Indiegogo. Posted on April 18th. "Meanwhile, we would like to share with you a demo of our new Trumpet oscillator, designed from our Brass physical model, that will soon be available on both Sylphyo and Anyma:".
https://soundcloud.com/aodyo/trumpet-section

Sadly, the same update said that the Anyma Omega would be delayed by 3 months as Aodyo can no longer get the screen part and have to use an alternative part which means modifying the electronic and mechanical design of the Omega.

@bibenu Here you go.
https://aodyo.com/anyma-phi-updates-and-downloads/

@Peter-Ostry In the WX5 manual, Yamaha refer to it as "Pitch Bend Wheel" rather that "Rocker". They say, "Thumb-controlled pitch-bend wheel allows convenient pitch bend control when either the reed (saxophone type) or recorder type mouthpiece is used.". Though from the way that you describe it as "Rocker", I guess that the action is more like a spring-loaded, bi-directional rocker switch?

@Peter-Ostry It looks like Imoxplus have already designed an adapter for the Sylphyo, for a later version of the Photon prototype. Version 2 (or maybe 3 or later?).
Pedro Eustache shows the Photon v2 on his Sylphyo in the YouTube video, linked below.
Youtube Video – [16:41..]

@wwoodard8 said in Under the Blue Ring:

@Gromit Ah, well, interesting. I would really like a bite controller :)

Maybe one day, Rudy at Imoxplus and the rest of the Photon team will be able to get the Photon manufactured. They still cannot source any PSOC microprocessors from Cypress.

According to Rudy,
"The Photon offers you CC's for

• Breath out (blow)
• Breath in (suck)
• Tongue position (moving your tongue inwards or outwards)
• Lower Lip tension (pitch bend control with lower lip)
• Upper Lip position (shifting your mouth further or deeper on the mouthpiece)
• Vocal amplitude (making a vocal sound while blowing)
• Each sensor can be configured individually with curves, midi channel, smoothing etc...
• Up to 32 mouthpiece configurations (presets) can be stored in the photon and recalled using program changes
• Hires midi output can be activated for each sensor individually
• Adjustable breath flow (resistance)
• etc.".

The Photon would attach to a Sylphyo in place of the Sylphyo's mouthpiece.
Air blown into the Photon mouthpiece by the musician does not pass through the Sylphyo. It exits straight back out of the Photon again. The Sylphyo just detects the notes that are being played. The Photon's MIDI data and the Sylphyo's MIDI data (the notes fingered (and motion control?)) are merged to drive apps such as Respiro from Imoxplus or SWAM. External MIDI synths too, I believe.

As is clear from Clint's pictures of his Sylphyo, the connector for the active mouthpiece is not actually fitted in the production Sylphyos but the moulding is there for it.

@wwoodard8 Aodyo were working on their own design of active mouthpiece back at the time of the original Indiegogo fund-raising campaign.
It would appear that sadly, insufficient funds were raised to provide for the active mouthpiece to be made available as an option.

Here is a note from the Indiegogo campaign updates, from Jun 19, 2015.
"Following some feedback from last Musikmesse, and some request during this campaign, we decided to provide one new expansion port in the Sylphyo to allow future alternate active mouthpieces. Here are the first preliminary preview about how it should work (here with a preliminary sax/clarinette type mouthpiece) to allow extra control on sound from reed pressure:".


It would appear that in the production version of the Sylphyo, a decision was taken to shift the active mouthpiece's connector to the rear, display side?

I wonder if Sylphyo sound #10 - Electro Fuse, might come close?
In the Sylphyo User Guide, Electro Fuse is described as, "A sound for guitar heroes, overdriven to the extreme, with plenty of feedback that you can accurately control just by moving your instrument around.".

Here is Aodyo's YouTube official video demonstrating the Electro Fuse sound.
Youtube Video

@Jean-Louis In your original post, you asked the question, "All this without having to use the LINK box?".
Yes, you could connect the Sylphyo direct to your computer using a USB cable.

This may not be of great help.
Below is a link to a YouTube video from the very helpful Alistair Parnell, setting up a rival scoring program, Sibelius, to accept input from a wind controller from another company.
Maybe some of the settings would be similar to the ones needed in MuseScore with the Sylphyo?
https://tinyurl.com/4k6ww2vr