In a chapter 13 case, to participate in distributions from the bankruptcy estate, unsecured creditors must file their claims with the court within 90 days after the first date set for the meeting of creditors. Fed. R. Bankr. P. 3002(c).
They may have nylon or steel strings. The strings of a six-string guitar are tuned to E, A, D, G, B, E, a fourth apart except for the major third interval between B and G. Frets are placed by the fret rule one-eighteenth the remaining length of the string. This makes them a semitone apart.
Twelve-string guitars have six regular strings and a second set of thinner strings. Each string of the second set corresponds to the note of its regular string counterpart. The strings form pairs and therefore you play a twelve-string guitar in the same manner as you would a standard six-string.