Definition: The word "aestus" refers to an instrument or device used for making sounds, particularly for speech or musical purposes in Greek, Latin, and early Christian languages. In Greek, "aestus" was associated with the sound of woodwind instruments such as a trumpet or lyre. These instruments could produce a range of different tones including flute-like timbres, cymbal-like resonance, or more abstract sounds such as notes made by hand. In Latin and early Christian languages like Hebrew and Greek, "aestus" also referred to musical instruments similar to the woodwind instruments but with a focus on melody rather than sound production. This instrument might include pipes and lyre, which were used for both sacred and secular music. The specific function of "aestus" varies across different cultures and languages. It's important to note that in some cases, it could have been more general, capable of producing various sounds from wind instruments like trumpets, trombones, and other related instruments.

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