An example of tuneful is an orchestra.
He thought his poetry too imitative, detecting not only the truthful severity of Crabbe, but a "slight bravura dash of the fair tuneful Hemans."
tuneful melodies, many of which will be familiar.
Slightly fey, very tuneful and very nice, they're not for everyone.
It's obvious, it's tuneful, and it'll annoy the hell out of cynics everywhere.