'Blues' is usually referred to either the '12-bar blues' or the 'blues scale'. Both are unique aspects by them self and can be put into a rock beat or a rock melody/accompaniment. Most songs are either rock or blues, the blues is hardly ever evident in rock, but it is normal for rock themes to be in songs based on 'blues music'.
blues
The multi-talented Ray Charles was a master of many forms of music - blues, rock, soul, gospel among them.
heavy metal, classic rock, progressive rock, r and b, punk rock, punk, alternative many more
His favorite music is rock and blues.
rock 'n' roll music
Ramon Goose is an English Blues guitarist, producer and singer who sings a varitey of different genres of music. He is known for blues but also sings blues rock, rock, country blues, gospel and African blues.
Rock/blues
Yes. In was called blues in the 1950's and then became Rock and Roll.
Rock, Classical rock, Some blues
there are loads of kinds of rock music: blues rock, classic rock, grunge rock, goth rock, pop rock, surf rock Search for rock music in wikipedia
blues