Two voices may begin with what sounds like one shared line and then separate. The point of separation can be easier to notice than the names of the notes they choose.
Pick a short recording you already know and listen at a comfortable level. Follow the voices from their entrance. Do they change together, hold different lengths, or take different directions? If the recording is too dense to tell, choose a clearer passage rather than guessing.
Make a simple drawing with two lines. Keep them together where you hear shared movement and separate them where you hear divergence. The drawing records your listening, not an exact transcription of pitches.
Replay the transition and check whether the difference began earlier than you first thought. A small timing difference or a sustained note might prepare the separation before it becomes obvious.
Now listen to the accompaniment. Does it change at the same moment or continue as before? Avoid assuming the voices alone caused the entire effect.
A useful listening note might say, “One voice holds while the other continues the phrase.” That is more informative than simply calling the section harmonious. It gives you a particular relationship to recognise when the passage returns.
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