Translation of "merrily" into Japanese

Life is but a dream, and I bet you aren't row, row, rowing the boat merrily at all, are you?

人生は夢の如し ずっと陽気に 船の櫓を漕ぐわけではありませんね?

Many little red birds always sing merrily in the trees.

たくさんの赤い小鳥が、いつも楽しげに木々でさえずる。