Following on from this I’m reposting this from another Forum. Though it’s food for thought. I actually use this when balancing sounds and styles.

Basics of mixing

My reference point for adjusting style part volume has always been 100 (in the scale 0-127).
This means that I have always set all parts to 100, and then adjusted all up or down in relation to this.
I had chosen this value for two reasons:
1: Analog mixing indicates the highest possible value before distortion occurs, to avoid hissing and noise.
2: Style Works uses 100 by default.

This number is far too high.
Why?

Because mixing on a keyboard does not take place analogously, but digitally.

What does the number 100 mean?

This is based on the scale 0-127, which starts at -64 and ends at +63.
This means that the actual zero point (center value) is 64, and not 100.
With 64 as the zero point, you can adjust the same amount both ways - 64 down and 63 up (64 + 63 = 127).

The weakest instruments thus get the maximum opportunity for reinforcement, while the strongest get the maximum opportunity for minimization.

Many people have probably noticed that the voices of the right hand often do not get enough reinforcement, and this is due to incorrect center value for style parts.
If this is set to 64, you will never experience problems with the right hand voices becoming too low.

If you study Yamaha`s internal styles, you will see that they have an average center value of 64.