(vÄ'pÉr) 1  The gaseous state of a substance that is normally liquid or solid at room temperature, such as water that has evaporated into the air. See more at vapor pressure, See also water vapor. 2  A faintly visible suspension of fine particles of matter in the air, as mist, fumes, or smoke.
The belief that blues is historically derived from the West African music including from Mali is reflected in Martin Scorsese âs often quoted characterization of Ali Farka Toure âtourÃ© s tradition as constituting THE dna of the. blues
The blues is mostly about the blues scale, 12 bars and the I-IV-V chord progression. Most blues boils down to these three elements - most, but not all. There are so many sub-genres in Blues, it is difficult to name them all, but suffice it to say the R&B, Rock-n-Roll and Soul music are the direct descendants of the blues. There is also Jump Blues, Delta Blues, Piedmont Blues, Chicago Blues, Memphis Blues, Urban/Electric Blues, Zydeco and many more sub-genres that all relate to blues styling.