The Vietnamese word "dịch giọng" primarily relates to music and means "transpose." It refers to the process of changing the key of a piece of music, which involves shifting all the notes up or down by a certain interval.
In more advanced musical discussions, "dịch giọng" can also refer to the technical aspects of transposing music, including understanding intervals and maintaining the harmonic structure of the piece while changing its key.
In summary, "dịch giọng" is an important term for musicians that signifies the act of transposing music to a different key.