This was Pablo Picasso and it was created in 1904
Could u re-type this question? Are you asking why do we need to work in groups? If so it’s because you can build communication skills and real world skills where jobs will require some sort of interaction.
Answer:
Because you will need to follow the rhythm of the song and a lot of people do not know that and to play great, you need to practice very hard.. like very hard.
(i hope it helps)
:))