I wrote a song on GP4 or 5 or something and I wanna put it into an MP3, but I don't know how besides playing it out myself (which I'm too lazy to do). Tips?
Play it out yourself. :P
You could either export it as a MIDI track and encode to mp3 using an audio editor, or you can export from GP as a wav file. (file->export->wave)
if you want to make an mp3 out of it,download a program called audacity,record your song on audacity,then,download what's called the LAME encoder for audacity,then export your song as an mp3.
How do I record using audacity? I don't have a mic that's suitable for recording. I do have a male to male 1/8th inch, would it work if I plugged that in the mic and headphones slot?
Change the input to stereo mix. You might need to enable that first (control->sound->manage audio devices->recording) if it's not there, right click and click show disabled devices.