I want you to have the intention to change the amplitude, tones, and speed to create the appropriate effect while you chant.
Rishyu kyo is chanting for the future, any proposal we want to accomplish. Chant in a strong, high tone and volume.
Kannon gyo is for the past. Deceased spirits prefer the mellow, low tone.
Hannya Shingyo depends on the subject. If urgent and we need to wipe all of the attached spirits, we need to use the high tone to blow. We need to use high tone to forcefully remove anger or any strong feelings of spirits. Or low when we need to modulate scattered feelings. The spirits do not understand the language that we use, but they can distinguish the tones that we use. Speed and tones make sense to them.
The tuning is the most important concept. So later we can tune up with the subject. We should be flexible on what subject we are tuning to in the chanting.
Urgent, future, begging, we use high tone.
For reconsideration, like, “Hey deceased spirit, I know you’re upset, but you need to calm down.” These situations use lower, slower, moderate sound.
This is also useful for everyday conversation. Someone who has a very good relationship with someone, he or she can talk fast, low, high, etc. The point is to have mutual, very coordinated, harmonized tones.
So try to have a form and character space and put them in the space, or arena. The story can be told with the difference of tones. Apply these suggestions to how you blow, mend, take care of them when they’re in the space—fast chanting speed, slow, what rhythm, etc.