Beale & Main Blues - Key of G. Here we have a cool shuffle in the style of Memphis Minnie. Check out Minnie's 1950s recordings. This track features an all acoustic band, except for the two rhythm guitars playing through 1950s Valco valve/tube amplifiers. One rhythm guitar is in open G tuning (DGDGBD) and the other is in standard (EADGBE). This was dance music of its time and it always had a raw rough feel to it. The electric slide is in open G tuning (DGDGBD) and is played in a style similar to Casey Bill Weldon (Minnie's one-time husband). The piano is playing some wonderful lines for you to copy on a guitar.