Harmonically

from WordNet (r) 3.0 (2006)

harmonically
    adv 1: with respect to harmony; "harmonically interesting piece"

from The Collaborative International Dictionary of English v.0.48

Harmonically \Har*mon"ic*al*ly\ (-[i^]*kal*l[y^]), adv.
   1. In an harmonical manner; harmoniously.
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   2. In respect to harmony, as distinguished from melody; as, a
      passage harmonically correct.
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   3. (Math.) In harmonical progression.
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