Method and electronic device for adjusting accompaniment music

1. A method of transposing a musical key of accompaniment music, used by an electronic device to adjust an accompaniment music by adjusting a frequency of a plurality of time sections of the accompaniment music for a song, the method comprising:

partitioning the song into a plurality of time sections wherein each time section of the accompaniment music corresponds to each segment of the song by an original singer;

determining a singer's vocal range;

in response to the singer's vocal range being narrower than an overall original vocal range of the song:

comparing the singer's vocal range with the original vocal range for each segment of the song to determine whether the singer's vocal range covers the vocal range of the original singer for each segment of the song; and

based on the above step, transposing the musical key of at least one time section of the accompaniment music in response to a time section of the accompaniment music in which the singer's vocal range is narrower than the original vocal range for the corresponding segment, and not transposing the musical key of each time section of the accompaniment music in which the original vocal range is covered by the singer's vocal range, wherein the musical key of at least one of the plurality of time sections is transposed and the musical key of at least one of the plurality of time sections is not transposed.

2. The method of transposing the musical key of accompaniment music as claimed in claim 1 , wherein at least two time sections of the accompaniment music are transposed, and the two time sections of the accompaniment music are transposed to different keys.

3. The method of transposing the musical key of accompaniment music as claimed in claim 2 , wherein the plurality of time sections of the accompaniment music comprises m time sections divided into n groups of transposed time sections of the accompaniment music based on time, with each n group of transposed time sections having y time sections of the accompaniment music, wherein: within each n group of transposed time sections of the accompaniment music, the number of [keys] by which each time section in the group of transposed time sections is transposed is the same; and

5≤ m≤ 1000,3≤ n≤m− 2,1≤ y≤ 500.

4. The method of transposing the musical key of accompaniment music as claimed in claim 3 , wherein the method further comprises determining a transposition that results in a smallest value of n.

5. The method of transposing the musical key of accompaniment music as claimed in claim 3 , wherein each segment of the song by the original singer is based on each verse of lyrics.

6. The method of transposing the musical key of accompaniment music as claimed in claim 3 , which further comprises a step for obtaining the singer's vocal range.

7. An electronic device for adjusting an accompaniment music, used to adjust a frequency of a plurality of time sections of the accompaniment music for a song, wherein each time section of the accompaniment music corresponds to each segment of the song by an original singer; the electronic device comprises:

a processor and a memory;

the memory comprises a software program, the software program configured to determine a singer's vocal range;

when the singer's vocal range is narrower than an overall original vocal range of the song, the electronic device executes the software program to:

compare the singer's vocal range with the original vocal range for each segment of the song to determine whether the singer's vocal range covers the vocal range of the original singer for each segment of the song; and

based on the above step, a musical key of at least one time section of the accompaniment music is transposed in response to the singer's vocal range being narrower than the original vocal range for the corresponding segment, and is not transposed in response to original vocal range being covered by the singer's vocal range, wherein the musical key of at least one of the plurality of time sections is transposed and the musical key of at least one of the plurality of time sections is not transposed.

8. The electronic device for adjusting accompaniment music as claimed in claim 7 , wherein the musical keys of at least two time sections of the accompaniment music are transposed, and the two time sections of the accompaniment music are transposed to different musical keys.

9. Tile electronic device for adjusting accompaniment music as claimed in claim 8 , wherein the plurality of time sections of the accompaniment music comprises m time sections, which are classified into n groups of transposed time sections of the accompaniment music, with each n group of transposed time sections having y time sections of the accompaniment music, wherein: within each n group of transposed time sections of the accompaniment music, the number of keys by which each time section in the transposed time sections of the accompaniment music are transposed is the same; and

5≤ m≤ 1000,3≤ n≤m− 2,1≤ y≤ 500.

10. The electronic device for adjusting accompaniment music as claimed in claim 9 , wherein the electronic device executes the software program to determine a transposition that results in a smallest value of n.

11. The electronic device for adjusting accompaniment music as claimed in claim 9 , wherein each segment of the song by the original singer is divided on the basis of each verse of lyrics.

12. The electronic device for adjusting accompaniment music as claimed in claim 9 , wherein the electronic device executes the software program further to obtain the singer's vocal range.