I am sure most of you know this but in case you didn't (I didn't till very recently)
If you download the nhs c25k app then you still get Laura with her hugely useful advice and encouragement etc but you can use your own music. I am on week 7 and listening to your own music really made a huge difference for me- ran faster and time went much more quickly. I wish I had known about it earlier as the podcast music can be a little bit dire at times! Hope it helps you too.