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.
The guitar is tuned in 4ths. The only two strings that are not a 4th apart are the G and B strings. The distance from the G to B strings is a Major 3rd. If you start on the low E string and count up four notes (E F G A) you would land on an A. The distance from the 6th string to the fifth string is a 4th.