Final answer:
The tune from bars 164-190 could be referred to as a climax, interlude, or musical bridge, often highlighting an emotional or dramatic peak in the music.
Step-by-step explanation:
If we're discussing the term that could be used to describe the tune encompassing bars 164-190 in a piece of music, several terms can apply depending on context.
However, considering the information provided, which seems to describe a scene with music that involves an emotional or dramatic climax, terms like climax, interlude, or musical bridge could be appropriate. These parts of a composition usually serve to connect larger sections or highlight a particular moment.
The passage from the reference text gives the impression of a spiritual or transcendent musical experience, which suggests that this section of music might be particularly evocative or thematic. Such terms would be consistent with what one might expect in a description of a musical work that is attempting to evoke a certain atmosphere or provide narrative weight.