What is "vox angelica"

Vox angelica \Vox` an*gel"i*ca\ [L. angelica angelic.] (Music) An organ stop of delicate stringlike quality, having for each finger key a pair of pipes, of which one is tuned slightly sharp to give a wavy effect to their joint tone.

n. (context music English) an organ stop giving a gentle tremolo effect; the voix céleste

n. an organ stop producing a gentle tremolo effect [syn: voix celeste]