Read the text carefully, then choose the best answer

----- Nội dung dịch tự động từ ảnh -----
V. Read the text carefully, then choose the best answer.
In the 1960s, it took pop and rock groups one or two days to record their songs.
Nowadays, it can take months and months. Many rock groups begin by recording
only one instrument, for example, the voice. Then they record other instruments-
electric piano, synthesizer, guitars, drums and so on.
Next, they might use a computer to add special effects. Finally, they 'mix' all
the instruments until they get the sound that they want. This means that a CD or
cassette will always sound very different from a live concert.
Music engineers have developed a new computer programme that will change
the future of music. A computer can analyse a singer's voice. Then if you give the
computer the lyrics and music of a song, the computer can 'sing' it in that voice.
This means that a singer only needs to record one song and the computer can then
sing other songs in the singer's own voice. Singers can sing new songs many years
after they have died.
Most of us listen to music for pleasure, but for the record companies, music is a
product, the same as soap powder. When a record company finds a new group (or
"band'), they first try to develop the band's "profile'. They will try to create an
'image' for the band that they think will attract young people. Instead of allowing
the band's full artistic freedom, they will often tell the band what they should wear,
what they should say and how they should sing and play.
In recent year, many rock groups have started their own record companies
because they say that the big companies are too commercial.