Final answer:
Tay is learning subject-specific vocabulary related to music, which includes terms like chords, beats, harmony, canon, and rhythm.
Step-by-step explanation:
Tay is learning about chords, beats, harmony, canon, and rhythm in music class. These terms are examples of subject-specific vocabulary, which is terminology used within a particular discipline. In this case, the discipline is music, and understanding these terms is essential for analyzing, comprehending, and discussing musical works. This type of vocabulary helps describe the technical and stylistic elements that make up musical compositions and is different from conversational, literary, or general academic vocabulary.