How is listening to music on the iPhone? Does text messages and phone calls interrupt it?

I want to get an iPhone 4 32 GB. I want to listen to music on the iPod on the iPhone. How is it? Is it annoying when you start to get text messages and phone calls? Should I just get an iPod separately? Thanks.|||nah, not at all. as soon as you get a call or text, the music stops and your ringtone or texttone come on (through your headphones) and it shows whos calling or if its a text, it just beeps and shows the message, and continues playing the music. after your call, it goes right back to where you left off. iphone 4 is the greatest phone in the world!