Modulation is a fundamental concept in music that refers to the process of changing the key or tonal center of a piece from one pitch or group of pitches (the “tonic”) to another. This involves shifting the emotional and harmonic focus of a song from one key to another.

Modulation is a fundamental concept in music that refers to the process of changing the key or tonal center of a piece from one pitch or group of pitches (the “tonic”) to another. This involves shifting the emotional and harmonic focus of a song from one key to another.