nuance
"Subtle changes" refer to small or slight adjustments that may be difficult to notice immediately. These changes are often nuanced and may require closer observation or attention to perceive.
It may be subtle and require analysis to discover it
Mark Antony uses a subtle and eloquent tone in his speech. This is in contrast to the rational tone of Brutus's speech.
Dial *72 on your Sprint phone.Key in the area code and phone number of the line you want your calls forwarded to.Press the "Talk" button on your phone to initiate the call. This button is often highlighted in green.Wait for the tone and press "End" to end the call. The tone will indicate that your call forwarding is now active.Press *720 on your phone to deactivate your call forwarding.Press the "Talk" button and wait for the tone. The tone, again, will confirm the changes you made. End the call.
It's subtle
Try to be subtle when you ask about how much the motel room costs.The subtle change in her tone probably meant that she knew we were listening.We made some subtle alterations to the blueprints before construction."The universe is wondrous, with treasures to satiate desires both subtle and gross."(Q to Picard, Star Trek the Next Generation)
The representation of subtle changes in light.
tone-tone-semitone-tone-tone-tone-semitone
According to occultism the phsical body is enveloped in a less material body called the subtle body and it is our subtle body which connects us to the universe
The tone for a haiku is typically contemplative, evoking a sense of simplicity, beauty, and nature. It often conveys a moment of insight or reflection in a subtle and profound manner.
Her subtle gesture of nodding encouraged him to continue speaking.