Namespace ID:
      urn-<n>

   Registration Information:

      Registration version number: 1
      Registration date: 2001-@@-@@

   Declared registrant of the namespace:

      Name: Sean B. Palmer
      email address: <mailto:sean@mysterylights.com>

   Declaration of syntactic structure:

      urn            := "urn:" nid ":" nss
      nid            := "urn-" n
      n              := number-assigned-by-IANA
      nss            := note
      note           := ( western | ratio )
      western        := hertz ":" westernnote
      ratio          := hertz ":" rationote
      westernnote    := "A" | "Bb" | "B" | "C" | "Cs" | "D" | "Eb" | "E" | "F" 
                        "Fs" | "G" | "Gs"
      rationote      := number "/" number
      number         := digitxo *digit
      digitxo        := "1" | "2" | "3" | "4" | "5" | "6" | "7" | "8" | "9"
      digit          := "0" | digitxo
      hertz          := number [ "." number ] ( "Hz" | "KHz" )

   Examples of valid URNs under this scheme include:

      urn:urn-<x>:A
      urn:urn-<x>:1/72
      urn:urn-<x>:440Hz:A

   Relevant ancillary documentation:

      All URNs defined herein conform to:-
      Moats, R. "URN Syntax", RFC 2141, May 1997.

   Identifier uniqueness considerations:

      These URNs may map many to one, but not one to many.

   Identifier persistence considerations:

      URNs have the requirement that they be persistently bound to one 
      resource, and not reassigned.

   Process of identifier assignment:

      The assignment of URNs is closed by the syntactic rules.

   Process for identifier resolution:

      These URNs resolve to a note. That is, they resolve to the concept of 
      a certain amount (frequency) of vibrations on an archetypal string.

      Perhaps by activiating a link to such a URN, a musical note could 
      be played. In that way, crude HyperText instruments could be formed.

   Conformance with URN Syntax:

      Processors SHOULD follow the lexical equivalence considerations 
      of the URN specification, although postal services tend to be 
      flexible.

   Validation mechanism:

      None specified.

   Scope:

      Global; music is music.