The piece could be structured as a medley, weaving together fragments of the band's most popular songs. The arrangement could start with a nostalgic intro, setting the tone for a trip down memory lane.

Here's a possible musical piece:

"The Moffatts Greatest Hits Medley"

"The Moffatts Greatest Hits" sounds like a fascinating piece! The Moffatts were a Canadian pop-rock band known for their catchy and upbeat songs. If I were to imagine a piece inspired by their greatest hits, I'd envision a vibrant and energetic composition.