1) Acclimated 2) Accustomed 3) Adjusted 4) All ears 5) Brought into accord 6) Brought into harmony 7) Familiar 8) In step 9) In synch 10) In the swing of things 11) In tune 12) Made harmonious 13) On the same wavelength 14) Synchronized 15) Tuned 16) Used to 1) Adjusted 2) Keyed 3) Tuned 
• (imp. & p. p.) of Attune
[adj] - (music) brought to correct pitch 2. [adj] - so adjusted as to be appropriate or brought into harmony
adjective so adjusted as to be appropriate or brought into harmony; `an industry not attuned to the demands of the market`; `a remark keyed to the situation`; `charges finely tuned to the amount a student can afford`