Simplify the following text for a Grade 7 native English-speaking person.
Original: The terms have come to refer to the types of song conventionally placed on each side of the record , with the A-side being the featured song ( the one that the record producer hopes will receive radio airplay and become a `` hit '' ) , while the B-side , or flipside , is a secondary song that often does not appear on the artist 's LP .
Simplified: This is the one that the record producer hopes will receive radio airplay and become a `` hit '' . The B-side , or flipside , is a secondary song that often does not appear on the artist 's LP .