Q: have just bought a new laptop. how do i transfer my music from my iphone to the laptop

Hey there, eamonnfromcrescent head! 

It's a pleasure to see you here in the Apple Support Communities! Congratulations on the new laptop. Syncing media between your iPhone and a computer depends on what type of content you currently have on the iPhone. There are many different ways to complete this. Have a look at this article for corresponding instructions that explain how to bring different content to your new machine: 

Sync media between your iPhone, iPad, or iPod touch and iTunes on your Mac or PC

Have a phenomenal day!