Final answer:
Articulation is the key parameter for composers to ensure smooth transitions between notes in a song.
Explanation:
Articulation is the parameter a composer would adjust to make a song flow smoothly from note to note. Articulation refers to the manner in which notes are played, such as staccato (short) or legato (smooth). By adjusting articulation, composers control how notes are connected or separated, influencing the overall coherence and fluidity of the music.
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