Something will come to me in the middle of the day, and I'll Voice Note it so I don't forget how I felt when the idea came about. I can hear the feeling I had when I first recorded it.
You can't even imagine how it felt to have a cassette that you could take with you with a microphone so you could put down an idea and not have to hum it a million times to remember what it was.
Many times, the way I write my themes or melodies is that I hear it, and then I sing into my phone or something, or I'll scribble down on a piece of paper.
Usually, if I hear songs, I record it on a Voice Memo first. I have to perfect it. I'm a big fan of delivery, and I want to make sure you're saying it right. I'm like, 'This has to be perfect when I do this.'
With iPhones, nobody has an excuse for writer's block. If you're at Whole Foods getting your green tea extract and you have a melody, you just drop it into your voice memo and save it for later.
In my screenplays - from the very beginning I've always used tape. I talk my screenplays. And then have somebody transcribe them.
My favorite thing that I can do with my iPhone is dictate a letter.