即そっ興きょう曲きょくMeaningsNoun1. impromptuKanji used即instant興vitalize曲curvedPitch accentそっきょうきょくComposed of即そっ興きょうimprovisation; improvised; impromptu; extempore; ad-lib; off-the-cuffNoun曲きょくcomposition; piece of music; song; track (on a record); tune; melody; air; enjoyment; fun; interest; …Noun