"Freddie and Brian tend to write the majority of the material"

John Deacon's quote recommends that Freddie Mercury and Brian May are the primary songwriters for the band Queen. This is likely due to their musical skill and creativity, along with their capability to collaborate and develop music together. It is likely that the 2 of them have a strong bond and understanding of each other's musical design, which enables them to compose the majority of the product for the band. This is likely why John Deacon, the bassist for Queen, is so complimentary of their songwriting abilities. It is clear that Freddie and Brian have a special connection when it concerns developing music, and it is this connection that has allowed them to write most of the product for Queen.