Tariffs against China were the centrepiece of Donald Trump’s “Liberation Day” trade plans. Our correspondent explains the significance of a new 90-day hiatus. Will Ukraine and Russia come to the negotiating table this week (7:51)? Why new techniques to compress the contrast between loud and quiet music could be damaging our hearing (15:35). And help us improve the show by taking this survey. Listen to what matters most, from global politics and business to science and technology—Subscribe to Economist Podcasts+For more information about how to access Economist Podcasts+, please visit our FAQs page or watch our video explaining how to link your account.