Meanings of rollicking tune in English

So he was humming a rollicking tune when he reached the fireroom.

He heard the hymn sung to a rollicking tune:-

They were singing a rollicking tune.

This rollicking tune called up such laughable associations, that one of the young men proposed that it should be sung.

The rollicking tune of it shouted into the night, into the stately stillness that surrounded the old house, had the abruptest, unseemliest effect.

He laid his cheek down on his little fiddle,-youdon't know how Tommy loved that little fiddle,-andstruck up a gay, rollicking tune,-

Then he flexed his fingers, put the pennywhistle to his lips, and began to play an odd, rollicking tune that leapt and twisted and sang.

"Doo-dah, doo-dah!" he agreed, and they joined in the rollicking tune.