Sonora's father was born in June, so she chose to hold the first Father's Day celebration in Spokane, Washington on the 19th of June, 1910. President Calvin Coolidge, in 1924, supported the idea of a national Father's Day.
It's hard to define blues. On a literal angle, it's the dance you do to blues music, generally involving lots of improvisation, closeness, and hip movements. While swing and blues have basics, frames, and moves... blues doesn't.
Twelve-bar blues. The twelve-bar blues or blues changes is one of the most prominent chord progressions in popular music. The blues progression has a distinctive form in lyrics, phrase, chord structure, and duration. In its basic form, it is predominantly based on the I, IV, and V chords of a key. The blues can be played in any key. Mastery of the blues and rhythm changes are critical elements for building a jazz repertoire.