Sculk sensors are a good wireless redstone method, but is much less powerful than other wireless redstone alternatives: they have very short range (8 blocks), have a lot of leaks (actually anything can broke a redstone sequence between sculk sensors) and the signal is so slow
I thought a solution for that: add special interactions between sculk sensors and noteblocks.
At the present time note blocks haven't much utility, more than "decoration" purposes or composing music in Minecraft, but this feature can add a very cool use for them.
Sculk sensors would detect note block sounds that have the same instrument (the block below a note block) adding that same type of block below the sculk sensor. This will change the instrument that a sculk sensor can detect.
Also this feature can be implemented in another way to provide more isolation to this type of conexions, putting a note block below the sculk sensor (and below this note block, the block that changes the instrument), this will lock the sculk sensor in a state that only can hear note blocks with the same instrument than the note block below, personally I prefer this implementation way.
Because the sculk sensor is above the note block, the note block won't emit any sound when the sculk sensor emit the redstone signal, avoiding leaks in the circuit.
If you put a comparator connected to a sculk sensor that only can hear note blocks, the comparator will emit a redstone signal with a strength directly proportional to the pitch of the note (the more pitch the more redstone strength).
These behaviors make the sculk sensor acts similar than a tuning fork, that can makes other tuning fork vibrates if both have the same frequency.
In terms of range, a sculk sensor in block note mode would detect a note block if this is inside of the radius of sound of the note block (48 blocks), this can be reduced to the half to balance the feature. Also the transmission speed of this method can be increased.
Wool blocks also avoid the sculk sensor to hear the note blocks, but also can avoid to be heard by the player too, this helps to isolate the circuit and test it properly.
The pink wool tube is empty and can conduct the sound without leaks.
To sum up, I think this feature would solve the current problems of the sculk sensor, making it more interesting and useful, also this will provide to note blocks a very huge functionality and relevance in redstone terms, that could start to be used in redstone circuits in a technical level.
If this feature will be implemented, the instrument block of the acoustic guitar needs to be changed (currently is the wool block, but that will cause problems due to the wool insulation properties).
There's a post on Minecraft Feedback with this idea, you can find it here.
...I like this idea. It seems well thought out, and would definitely provide more incentive to try and incorporate sensors into builds. More experienced redstone builders could find ways of making systems like this even more complex; and it would also allow less experienced redstone builders to use this mechanic without as much frustration. And of course, noteblocks are pretty much useless right now unless you want to make music.