"Write a second canon-this time with the second voice coming in at the interval of the fourth."
Doesit mean the second voice starts at measure 2 and every note of secondvoice need to be at the interval of the fourth?(perfect, augmented ordiminished?)YES. EXACTLY THIS.
Is the second voice a totally different melody compared to the first voice? NO. It is identical to the first voice, but up a fourth.
但是他下面那个回答中说“but up a fourth”怎么理解呢？是第二声部往上移四度吗？但是题目中并没有说往上还是往下差四度呀...