The Collaborative International Dictionary of English v.0.48:

Songcraft \Song"craft`\ (s[o^]ng"kr[.a]ft`), n.
   The art of making songs or verses; metrical composition;
   versification.
   [1913 Webster]

         A half-effaced inscription,
         Written with little skill of songcraft.  --Longfellow.
   [1913 Webster]