Thayer's Greek Lexicon

 1. to pluck off, pull out
2. to cause to vibrate by touching, to twang
  1) to touch or strike the chord, to twang the strings of a musical
instrument so that they gently vibrate
  2) to play on a stringed instrument, to play, the harp, etc.
  3) to sing to the music of the harp
  4) in the NT to sing a hymn, to celebrate the praises of God in song