The use of open tunings on the guitar to accompany singing is one of the hallmark sounds of the Country Blues. Unquestionably, the two open tunings that have been used most commonly in the Country Blues have been Spanish tuning, often called Open G tuning and Vestapol tuning, quite often called Open D tuning. For this 2-DVD lesson, we've chosen the names Spanish and Vestapol to designate these tunings, because in practice, Spanish tuning was not always tuned exactly to an open G chord and Vestap...