A singer sits at the piano and loses all inhibitions while in complete control of the instrument: Little Richard, Ray Charles, Jerry Lee Lewis. Although church singer Arizona Dranes doesn't come close to the stature of those icons, she set the mold for rockin' singer/ pianists in 1926 with six 'test records' that have stood the test of time. Until now, very little has been correctly reported about Dranes other than the facts that she was blind, from Texas, had a piercing Pentecostal voice …