Granny listens to some music on the radio and the babies decide to make some like it. Lola has this fantasy of them all in a band. Later they (except for Daffy) try to make a band. They're terrible, but Granny likes it. (well, that's what she tells them)
The song Granny listens to was referred to as classical music in a summary but it isn't; it refers to movie score.
During Lola's Dream Ballet, music from Peter Tchaikovsky's Swan Lake Suite plays.
During one point when Tweety tries the flute, the sound was actually a piccolo (this is an octave higher than a normal flute).
Starting with this episode, the babies don't wear diapers anymore. They now grow up a bit.