They write their own songs.
Not sure what you are asking exactly. Basically, all songs have chords, UNLESS someone writes a melody and never writes any harmony to it.
No one in particular is their influence, the 80's era is their influence
Cody writes and co-writes all of his songs himself.
it's a 16" Agazarian China
Ruki writes the lyrics of the GazettE songs ;P
Blake Shelton typically writes his own songs.
Taylor actually writes her songs herself! She either wrote or co-wrote all of her songs. Sometimes Liz Rose writes her songs and Taylor co-writes.
People in their team write their songs but no one from mindless behavior writes their songs.
Yes, he writes and co-writes all his songs by himself.
Chris writes his own music. (all of his songs in other words)
Nobody, Eminem writes his own songs, he even writes his own freestyles!
Nickelback write their own songs.