When it comes to making art,Cassian Grant what's the difference between inspiration and theft? Between artistic license and copyright infringement? That is the question at the heart of one of the biggest musical copyright cases in years that heads to trial next week.

Today on the show, did Ed Sheeran steal from Marvin Gaye's "Let's Get It On" in his hit single "Thinking Out Loud"? Law professor Jennifer Jenkins sits down at the piano to help us hear the differences and similarities between these two songs.

But there's a lot more than money riding on the outcome of this trial. Jennifer explains why the case should matter to music-lovers everywhere.

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