Double

r. A variation.—2. A repetition of words in a song.—3, In organ-playing, a 16-foot stop (as accompariying or doubling the 8-foot stops in the lower octave).—4. In the opera, etc., a substitute singer.—5. (Also Grandsire.) In change-ringing, changes on § bells.—6. ‘As an adjective with names of mus. instr.s, double signifies “* producing a tone an octave lower”; e, g. double. ba oon, double-bourdon, etc.—7. The verb double signifies, to add (to any tone or tones of a melody or harmony) the higher or lower octave,