secondo

from WordNet (r) 3.0 (2006)
secondo
    n 1: the second or lower part of a duet (especially a piano
         duet)
    
from The Collaborative International Dictionary of English v.0.48
Secondo \Se*con"do\ (s[-e]*k[o^]n"d[-o]; It.
   s[asl]*k[-o]n"d[-o]), n. [It.] (Mus.)
   The second part in a concerted piece.
   [1913 Webster]
    

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