A harmonic interval is the interval between two notes sounded simultaneously 同时发声的两个音之间的音程为和声音程。
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The term harmonic interval is used to indicate an interval between two notes sounded together , as opposed to a melodic interval , when two notes are sounded in succession 和声音程用来描述两个同时发出声音的音符间的音程,与先后发声的曲调音程相对。