Supermajority rule gave southern Democrats an effective veto over any presidential nominee for many years, until the rule's abolition at the 1936 Democratic National Convention. A majority vote, or more than half the votes cast, is a common voting basis. Instead of the basis of a majority, a supermajority can be specified using any fraction or percentage which is greater than one-half (i.e., 50%). It can also be called a qualified majority. Common supermajorities include three fifths (60%), two thirds (67%), and three quarters (75%). A two-thirds vote, when unqualified, means two-thirds or more of the votes cast. This voting basis
Major thirds tuning often added to restore the standard E-E range. While M3 tuning can use standard sets of guitar strings, specialized string gauges have been recommended. Besides this M3 tuning, which has the open notes {G, C, E}, there are exactly three other M3 tunings, which have distinct sets of open-note pitch classes. The other major-thirds tunings respectively have the open notes {A, C, F}, {A, D, F}, and {B, D, G}. For six-string guitars, the M3 tuning loses the two lowest semitones on the low-E string and the two highest semitones from the high-E string in standard tuning; it can use