1) Acclimatise 2) Acclimatize 3) Adjust 4) Adjust for pitch 5) Adjust or accustom 6) Adjust or accustom to 7) Become accustomed 8) Bring into accord 9) Bring into harmony with 10) Bring to accord 11) Correct 12) Finely adjust 13) Get in harmony 14) Get on the right wavelength 15) Harmonize 16) Make accordant 1) Sensitize 2) Standardize 
• (v. t.) To tune or put in tune; to make melodious; to adjust, as one sound or musical instrument to another; as, to attune the voice to a harp. • (v. t.) To arrange fitly; to make accordant.
At·tune' transitive verb [ imperfect & past participle Attuned ; present participle & verbal noun Attuning .] [ Prefix ad- + tune .] 1. To tune or put in tune; to make melodious; to adjust, as one sound or musical ...
bring into harmony 
[v] - adjust or accustom to
verb adjust or accustom to; bring into harmony with
to bring into accord, harmony, or sympathetic relationship; adjust: He has attuned himself to living in the quiet country. · to tune or bring into harmony, as a musical instrument.