The final quarter of 2019 was a big one for politics, with the General Election and Brexit taking a chunk out of music radio as speech stations soared.

But, while BBC Radio 4 was up 4.7% year-on-year, 5 Live rose 9% and LBC rocketed 23.3% as Boris Johnson and Jeremy Corbyn duked it out at the polls, there was no shortage of political manoeuvering on the nation’s music stations either.

This time last year, radio was getting to grips with ...