资料来源 : Webster's Revised Unabridged Dictionary (1913)

Tunable \Tun"a*ble\, a.
   Capable of being tuned, or made harmonious; hence,
   harmonious; musical; tuneful. -- {Tun"a*ble*ness}, n. --
   {Tun"a*bly}, adv.

         And tunable as sylvan pipe or song.      --Milton.