der Ton
tone
A noise or sound with a particular pitch and quality.
Ich höre einen hohen Ton, der sehr störend ist.
I hear a high tone that is very annoying.

tone / clay
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tone
A noise or sound with a particular pitch and quality.
Ich höre einen hohen Ton, der sehr störend ist.
I hear a high tone that is very annoying.

The word 'Ton' (tone/clay) has two completely different origins and meanings. One group concerns sounds and styles (music, voice, color), while the other refers to the material 'Ton' (clay, earth for pottery). The context always makes it clear what is meant.
Der Musiker traf jeden Ton perfekt.
The musician hit every note perfectly.
To describe the way someone speaks, the structure 'in einem [Adjektiv] Ton' (in a [adjective] tone) is often used. The adjective describes the emotion or attitude.
Bitte sprich in einem ruhigeren Ton mit mir.
Please speak to me in a calmer tone.
The saying 'Der Ton macht die Musik' means that the way you say something is just as important as the content.
Du hast zwar Recht, aber der Ton macht die Musik.
You may be right, but it's not what you say, it's how you say it.
In the meaning 'Farbnuance' (color nuance/shade), 'Ton' is often the second part of a compound word, for example 'Farbton' (shade/hue), 'Blauton' (shade of blue), or 'Erdton' (earth tone).
Die Wände sind in einem warmen Orangeton gestrichen.
The walls are painted in a warm shade of orange.
When 'Ton' means the material clay, it is often combined with verbs such as 'formen' (to shape), 'brennen' (to fire), 'kneten' (to knead), or with the preposition 'aus' (out of/made of).
Im Kunstunterricht haben wir Schalen aus Ton geformt.
In art class, we shaped bowls out of clay.
The idiom 'den Ton angeben' means to lead a group or determine what happens. The person who leads is the subject of the sentence.
In der Besprechung hat von Anfang an die Chefin den Ton angegeben.
In the meeting, the boss called the shots from the very beginning.
language
'die Sprache' and 'der Ton' can both describe how someone speaks or writes. 'Sprache' refers more to the words, sentences, and overall expression. 'Ton' refers more strongly to the attitude or mood that comes through, for example friendly, strict, or rude. In an email, the language can be correct, but the tone can still seem cold. The words can be confused because both describe the impression a statement makes. As a guide: 'Sprache' is more about the wording, while 'Ton' is about the effect and attitude.

Im Büro ist ihr Ton nach dem Gespräch wieder freundlicher.
At the office, her tone is friendlier again after the conversation.
In offiziellen Briefen sollte die Sprache klar und höflich sein.
In official letters, the language should be clear and polite.