tunefully in a sentence

1. Adèle sang the canzonette tunefully enough, and with the naïveté of her age.

2. But the woman sang so tunefully as to turn the dreadful rubbish into an almost pleasant sound.

3. What an inestimable boon it would have been if all the corporeal and spiritual facts pertaining to man had thus been tunefully and logically inculcated in our youthful minds!