The blues were not 'discovered'. America was 'discovered'. The blues, evolved. Below is from Wikipedia. . .
"Blues is the name given to both a musical form and a music genre[1] that originated in African-American communities of primarily the Deep South of the United States at the end of the 19th century from spirituals, work songs, field hollers, shouts and chants, and rhymed simple narrative ballads.[2] The blues form, ubiquitous in jazz, rhythm and blues, and rock and roll is characterized by specific chord progressions, of which the twelve-bar blues chord progression is the most common. The blue notes that, for expressive purposes are sung or played flattened or gradually bent (minor 3rd to major 3rd) in relation to the pitch of the major scale, are also an important part of the sound.
The blues genre is based on the blues form but possesses other characteristics such as specific lyrics, bass lines and instruments. Blues can be subdivided into several subgenres ranging from country to urban blues that were more or less popular during different periods of the 20th century. Best known are the Delta, Piedmont, Jump and Chicago blues styles. World War II marked the transition from acoustic toelectric blues and the progressive opening of Blues Music to a wider audience. In the 1960s and 1970s, a hybrid form called blues-rockevolved.
The term "the blues" refers to the "blue devils", meaning melancholy and sadness; an early use of the term in this sense is found in George Colman's one-act farce Blue Devils(1798).[3] Though the use of the phrase in African-American music may be older, it has been attested to since 1912, when Hart Wand's "Dallas Blues" became the first copyrighted blues composition.[4][5] In lyrics the phrase is often used to describe a depressed mood.[6]. . . "
William Christopher Handy, often referred to as the "Father of the Blues," discovered blues music while traveling through the southern United States in the early 1900s. He encountered African American musicians playing a unique style of music that incorporated elements of folk, spirituals, and work songs. Handy was particularly struck by the emotional depth and improvisational nature of the music, which inspired him to transcribe and popularize it, leading to the widespread recognition of the blues genre. His compositions, such as "Memphis Blues" and "St. Louis Blues," played a pivotal role in bringing blues to a mainstream audience.
Blues on Top of Blues was created in 1968.
Delta Blues, often called the original blues. This includes Robert Johnson, Leadbelly, and Son House. Chicago Blues, which is basically the delta blues but electric. Muddy Waters is considered the first, but there is also Howlin' Wolf and Little Walters solo stuff is quite good. Texas Blues, Memphis Blues, Detroit Blues and then Blues Rock that originated in the 1960's.
No one discovered rock and roll. It evolved over time from rhythm and blues.
Know one nows much about the blues music .
Blues' Blues was created in 1972.
Blues on Top of Blues was created in 1968.
Delta Blues, often called the original blues. This includes Robert Johnson, Leadbelly, and Son House. Chicago Blues, which is basically the delta blues but electric. Muddy Waters is considered the first, but there is also Howlin' Wolf and Little Walters solo stuff is quite good. Texas Blues, Memphis Blues, Detroit Blues and then Blues Rock that originated in the 1960's.
these are the ones that had top forty hits: blues brothers blues image blues magoos blues traveler
The first names of the Blues Brothers are Jake Blues and Elwood Blues.
Know one nows much about the blues music .
No one discovered rock and roll. It evolved over time from rhythm and blues.
WC Handy
blues
Gospel and blues
A common blues chord progression used in many blues songs is the 12-bar blues progression.
The blues scale you may find in the book for Jazz Guitar or blues Piano. You also may find blues scale in the music dictionary of Jazz and Blues or book The Blues scale.