"When you've heard one bagpipe tune, you've heard them both"

This quote by Jack Finney is an amusing way of saying that bagpipe music is repeated and monotonous. It suggests that all bagpipe tunes sound the same which there is little variety in the music. The quote is likewise a method of poking fun at the bagpipe, which is typically seen as an out-of-date instrument. It suggests that the bagpipe is not efficient in producing a wide range of sounds and that it is restricted in its musical expression. The quote is an amusing way of revealing the idea that bagpipe music is not especially fascinating or different. It is a lighthearted way of saying that bagpipe music is not particularly interesting or stimulating.