Meaning: 'Melancholic' refers to a feeling of deep sadness or sorrow, often reflective in nature.

Wrong options:

• longing: 'Longing' is a noun that refers to a strong desire, which does not grammatically fit as a descriptor for 'innocence.'
• fulfillment: 'Fulfillment' is a noun that indicates a sense of achievement or satisfaction, which does not appropriately describe 'innocence.'
• premature: 'Premature' is an adjective that means occurring too soon, which does not relate to the emotional quality of 'innocence.'
• heights: 'Heights' is a noun that refers to a high point or level, which does not fit as a descriptor for 'innocence.'
• external: 'External' is an adjective that refers to something outside or outward, which does not convey the emotional depth needed here.
• imposition: 'Imposition' is a noun that refers to the act of imposing something, which does not relate to the emotional context of 'innocence.'
• exactly: 'Exactly' is an adverb that indicates precision, which does not fit grammatically or contextually with 'innocence.'

Correct answer: fulfillment

Explanation: The term 'fulfillment' is a noun that fits grammatically as it serves as the object of the preposition 'at' implied in the context. It aligns contextually with the idea of achieving a sense of completion or realization in the later works, which is a natural progression from the earlier songs.

Meaning: 'Fulfillment' refers to the achievement of something desired or promised, often indicating a sense of completion.

Wrong options:

• melancholic: 'Melancholic' is an adjective and does not fit grammatically as a noun in this context.
• longing: 'Longing' is a noun that refers to a strong desire, which does not convey the sense of completion or achievement needed here.
• premature: 'Premature' is an adjective that does not fit as it does not relate to the concept of achieving something in this context.
• heights: 'Heights' is a noun that refers to a high point, which does not fit the context of achieving a sense of completion.
• external: 'External' is an adjective that does not fit grammatically or contextually as it does not relate to the idea of achievement.
• imposition: 'Imposition' is a noun that refers to the act of imposing something, which does not relate to the context of achieving fulfillment.
• exactly: 'Exactly' is an adverb that does not fit grammatically or contextually as it does not serve as a noun.

Correct answer: heights

Explanation: The word 'heights' is a noun that fits grammatically as it serves as the object of the verb 'reach.' It contextually conveys the idea of achieving a high level of artistic genius, which is a fitting comparison to Mozart's father.

Meaning: 'Heights' refers to the highest point or level, often used metaphorically to indicate the peak of achievement or excellence.

Wrong options:

• melancholic: 'Melancholic' is an adjective and does not fit grammatically as a noun in this context.
• longing: 'Longing' is a noun that refers to a strong desire, which does not fit the context of achieving a level of genius.
• fulfillment: 'Fulfillment' is a noun that indicates a sense of achievement, but it does not convey the idea of reaching a high point in the same way 'heights' does.
• premature: 'Premature' is an adjective that does not fit as it does not relate to the concept of achieving a high level of genius.
• external: 'External' is an adjective that does not fit grammatically or contextually as it does not relate to the idea of heights or levels of achievement.
• imposition: 'Imposition' is a noun that refers to the act of imposing something, which does not relate to the context of achieving heights.
• exactly: 'Exactly' is an adverb that does not fit grammatically or contextually as it does not serve as a noun.

Correct answer: premature

Explanation: The term 'premature' is an adjective that fits grammatically as it describes the noun 'death.' It contextually conveys the idea that the death of Mozart was untimely, which aligns with the hopes and ambitions placed on Franz.

Meaning: 'Premature' refers to something occurring before the expected time, often implying that it is too soon or untimely.

Wrong options:

• melancholic: 'Melancholic' is an adjective that describes a feeling and does not fit as a descriptor for 'death.'
• longing: 'Longing' is a noun that refers to a strong desire, which does not fit the context of describing a death.
• fulfillment: 'Fulfillment' is a noun that indicates achievement, which does not relate to the concept of death.
• heights: 'Heights' is a noun that refers to a high point, which does not fit as a descriptor for 'death.'
• external: 'External' is an adjective that refers to something outside, which does not relate to the context of death.
• imposition: 'Imposition' is a noun that refers to the act of imposing something, which does not relate to the context of death.
• exactly: 'Exactly' is an adverb that does not fit grammatically or contextually as it does not serve as a descriptor.

Correct answer: longing

Explanation: The word 'longing' is a noun that fits grammatically as it serves as the object of the preposition 'of.' It contextually conveys the idea of an unfulfilled desire, which aligns with the themes of unattainable love expressed in the songs.

Meaning: 'Longing' refers to a strong desire or yearning for something that is often unattainable.

Wrong options:

• melancholic: 'Melancholic' is an adjective and does not fit grammatically as a noun in this context.
• fulfillment: 'Fulfillment' is a noun that indicates achievement, which does not fit the context of unfulfilled desires.
• premature: 'Premature' is an adjective that does not fit as it does not relate to the concept of longing or desire.
• heights: 'Heights' is a noun that refers to a high point, which does not fit the context of unfulfilled love.
• external: 'External' is an adjective that does not fit grammatically or contextually as it does not relate to the idea of longing.
• imposition: 'Imposition' is a noun that refers to the act of imposing something, which does not relate to the context of longing.
• exactly: 'Exactly' is an adverb that does not fit grammatically or contextually as it does not serve as a noun.