Simplify the following text for a Grade 7 native English-speaking person.
Original: On the Sgt. Pepper 's Lonely Hearts Club Band album , the song opens to the sound of a chattering audience , and an orchestra tuning up , which was taken from the 10 February orchestra session for `` A Day in the Life '' .
Simplified: On the Sgt. Pepper 's Lonely Hearts Club Band album , the song opens to the sound of a loud audience , and an orchestra tuning up , which was taken from the February 10 orchestra session for `` A Day in the Life '' .