uegrass was initially included in the category of folk music and later changed to hillbilly. In 1948, bluegrass was placed under the country/western heading for radio airplay charting. All four of the seminal bluegrass authors - Artis, Price, Cantwell and Rosenberg - described bluegrass music in detail as originating in style and form, in one form or another, between the 1930s and mid-1940s. However, the term “bluegrass” did not appear formally to describe the music until the late 1950s, and did not appear in Music Index until 1965 (Kretzschmar, 1970). The first entry in Music Index mentioning “bluegrass music” directed the reader to “see Country Music; Hillbilly Music” (Kretzschmar, 1970, p. 91). Music Index maintained this listing for bluegrass music until 1986. The first time bluegrass music had its own entries in Music Index was 1987 (Stratelak, 1988). The topical and narrative themes of many bluegrass songs are highly reminiscent of folk music. Many songs that are widely considered to be bluegrass are in reality older works legitimately classified as folk or old-time music that are performed in the bluegrass style. The interplay between bluegrass and folk forms has been academically studied. Folklorist Dr. Neil Rosenberg, for example, shows that most devoted bluegrass fans and musicians are familiar with traditional folk songs and old-time music and that these songs are often played at shows, festivals and jams (Rosenberg, 1985). Origin of name[edit] Exactly when the word bluegrass itself was adopted to label this form of music is not certain, but is believed to be in the late 1950s,[13] and was derived from the name of the seminal Blue Grass Boys band, formed in 1939 with Bill Monroe as its leader. Due to this lineage, Bill Monroe is frequently referred to as the "father of bluegrass",[14] although his style drew upon the country, gospel, and blues[citation needed] music with which he had grown up. Monroe's 1946 to 1948 band, which featured banjo prodigy Earl Scruggs, singer-guitarist Lester Flatt, fiddler Chubby Wise and bassist Howard Watts (also known as "Cedric Rainwater")—sometimes called "the original bluegrass band"—created the definitive sound and instrumental configuration that remains a model to this day. By some arguments, while the Blue Grass Boys were the only band playing this music, it was just their unique sound; it could not be considered a musical style until other bands began performing in similar fashion. In 1948, the Stanley Brothers recorded the traditional song "Molly and Tenbrooks" in the Blue Grass Boys' style, arguably the point in time that Bluegrass emerged as a distinct musical form.[15] As Ralph Stanley himself said about the origins of the genre and its name: Ralph Stanley on April 20, 2008 at The Granada Theater in Dallas "Oh, (Monroe) was the first. But it wasn't called bluegrass back then. It was just called old time mountain hillbilly music. When they started doing the bluegrass festivals in 1965, everybody got together and wanted to know what to call the show, y'know. It was decided that since Bill was the oldest man, and was from the bluegrass state of Kentucky and he had the Blue Grass Boys, it would be called 'bluegrass.'"[16] The Oxford Companion to Music suggests an etymology related to the "Blue Mountains [sic] of Virginia."[17] First generation[edit] First generation bluegrass musicians dominated the genre from its beginnings in the mid-1940s through the mid-1960s. This group generally consists of those who were playing during the "Golden Age" in the 1950s, including Bill Monroe and his Blue Grass Boys, the Stanley Brothers, Lester Flatt and Earl Scruggs with the Foggy Mountain Boys, Hylo Brown and The Timberliners, Reno and Smiley, the Sauceman Brothers, Lonesome Pine Fiddlers, Jim and Jesse, Jimmy Martin and the Osborne Brothers, Red Allen (who also recorded with the Osborne Brothers for MGM in the mid-fifties), Mac Wiseman, Mac Martin and the Dixie Travelers, Carl Story and his Rambling Mountai