Unusual types of gramophone records vinyl colors became too high, but the different colored labels were continued, at least for popular music (black) and classical (red, as in "Red Seal"). In October 1945, RCA Victor put on the market its first "non-breakable" phonograph records. Made of a ruby-red, translucent vinyl resin plastic, they cost twice as much ($2 per disc) as the 12-inch Victor Red Seal. In the 1960s, a distinction was made in label colors of promotional copies of 45 RPM records as well, with pop music being issued on yellow labels and country on light green. In the 1970s, such gimmicks started to
Sometimes I'm Happy (Sometimes I'm Blue) a duet by Baur and Gladys Rice on Columbia Records (catalog number 998-D) and a vocal by Vaughn De Leath on Brunswick Records (catalog number 3608) also had a significant degree of popularity. A number of other recordings were made in 1927 (see below), and the tune has become a standard, recorded by many artists since that time. It appeared as the B-side of the landmark 1935 recording of "King Porter Stomp" by Benny Goodman and his orchestra (released July 31 as Victor 25090). Sometimes I'm Happy (Sometimes I'm Blue) "Sometimes I'm Happy" is a popular song. The music was