The distance between the highest and lowest tones of a melody is called the a. Range b. Phrase c. Tempo d. Tonic

The correct answer is a. Range.The distance between the highest and lowest tones of a melody is called the range. The range of a melody refers to the span between the lowest and highest pitches in the melody. It is a measure of the extent of the pitch variation within the melody.The other options are not correct:b. Phrase: A phrase in music refers to a group of notes that form a coherent musical idea or unit, but it does not specifically refer to the distance between the highest and lowest tones.c. Tempo: Tempo refers to the speed or pace of a musical piece, not the distance between the highest and lowest tones.d. Tonic: The tonic is the first note of a scale or the home note of a key, and it does not directly refer to the distance between the highest and lowest tones of a melody.Therefore, the correct answer is a. Range.