thematic

from WordNet (r) 3.0 (2006)

thematic
    adj 1: relating to or constituting a topic of discourse
    2: of or relating to a melodic subject [ant: {unthematic}]

from The Collaborative International Dictionary of English v.0.48

Thematic \The*mat"ic\, a. [Gr. ?: cf. F. th['e]matique.]
   1. (Gram.) Of or pertaining to the theme of a word. See
      {Theme}, n., 4.
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   2. (Mus.) Of or pertaining to a theme, or subject.
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   {Thematic catalogue} (Mus.), a catalogue of musical works
      which, besides the title and other particulars, gives in
      notes the theme, or first few measures, of the whole work
      or of its several movements.
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