I'm afraid there's no "easy" way to achieve it without spline by spline clone-scaling.
This would require a complex advanced distribution or some sort of Python Effector.
Sorry.

This can't be done automatically. Here's a semi-automatic workflow:
In the Spline Beads, set the "Fill Gap" to None. This will stop generating the small object at the end.
Set your Gap to the desired length.
Then, start scaling your clone on the Z Axis (that is the axis aligned to the Spline) until you have the count you want.
Maybe a custom Distribution could be made but I would like to know exactly your use-case to make sure it works.
Are you just planning to clone simple objects like cubes?

@attempt-advertising

I see what the problem is the camera perspective view of the page. All good thank you!

I'm glad you found the issue.
Good luck with your journey!

Try the "Spline Bead Distribution" from the Advanced Distributions in the cloner.

@attempt-advertising
I'm sorry but without some sort of visual reference or the file I'm unable to help...

The "Even" Distribution is correct because it measures the Spline distance between each clone.
Here's one way to do it:
Clone using Linear mode.
Use Spline Effector to place them on a flat Helix
Use a Step Effector to Raise them to the level you want.

https://www.dropbox.com/scl/fi/pz7s65lu2tq4m8pk6o8x9/clone-on-helix-Fixed.c4d?rlkey=bmh6dgp5juiuewrqszkk30ds1&dl=0

Anything the UV Terrace did should be part of the Weld Tool.
If not, please tell me what you're trying to do so I can try and help.

I added a Vertex Map on the Spline with a Box Field. I am using that Vertex Map in the Spline Emitter to ONLY emit from the parts of the spline that are outside the Box Field.

https://www.dropbox.com/scl/fi/5cofbyyq73l2qbszk10tj/sound_base_ctrl_single-Velocity-Math-Vertex-01A.c4d?rlkey=7oogulihz5io9s5zpyekdnt9n&dl=0

One way is to use a Math Modifier in the Particle Group set to Fields that uses the same Sound Field to Add velocity on the Y Axis

https://www.dropbox.com/scl/fi/mzoawqf2if5mlpwzifbvt/sound_base_ctrl_single-Velocity-Math-01A.c4d?rlkey=1e18dwwdh76jgp84gmyvbpy2e&dl=0

I'm afraid I'm not sure what you want to do.
You don't want emission at 0% sound and want emission at 100% sound. What happens from 1-99%
Some sort of reference video would be helpful... or a series of still frames to show the progression

I don't know if this helps but here's some guidance and a plugin
https://bakedpixels.publixr.com/gltf-export/

You can use the align to spline to move it on a predefined spline, but I assume you want it to appear it's not just moving, but rolling properly. As I mentioned above, this is not as simple as just moving on a spline or a surface.
Are you trying to replicate the instagram animation?

@Kh said

As far as I know, it's a rolling cube animation that was baked into an Alembic, and later the end frame of the Alembic was changed.

You cannot change anything in an alembic. It's all baked. UNLESS the Alembic was only the Rotation Not the movement. That animation has many more details not explained in that answer...
Some cubes stop, wait and then change direction. Some cubes Roll into place while others slide into place.

Not directly. The animation of the Alembic is defining the Position and rotation in your setup.
To achieve that, you would need to just do the rotation and then find another way to move the cubes.
Is there a reason you are using Alembic? Are you planning to replace the cubes with with something else?
As far as the Instagram post, I have no idea how that was done... it's an interesting setup but without some sort of information I need to do a lot of experimentation to figure it out... at the end of the day, would you know if the hand animated every individual cube?...

The key point is that Multi instances will not work in this case. Also you had a Step Effector with a Step field. That will not work.
Here's a setup with a Plain Effector offsetting the animation timing by 20 frames.
The expectation that they will continue moving is incorrect. You can loop the animation but each cube will return to the starting position as the motion is baked in the alembic and Mograph has no idea where each cube is...

Go to the same folder and download "alembic-animation_offset.c4d"

can you also upload the alembic please?

Oh, haha, sorry it's in the Cineversity Forum Folder

There is no direct way to change the sequence BUT you can use a spline that flows in the direction you want and clone on its points. Clones will assume the order of the points. Just make sure the Cloners are cloning on Vertex.
How you generate these splines is not important, so you can have huge setups by cloning splines to create the cloning pattern.

Go here: https://maxonvfx.com/askthetrainer_projects
and look inside the "Clone index using Splines" Folder for two samples.

Please let me know if that helps.

Without the Alembic File and your project there's not much I can do to help you solve the issue.
This should just work without any issues, unless you happen to come across a bug. In that case you need to contact Maxon Support.

@Pitchi
while there's no "Quantize" you can go to the "Functions" menu and at the bottom find the "Move/Scale" button.
You can type the amount you want the selection to move.