Introduction to MIDI and Computer Music: Making an MP3 with iTunes

Making an MP3 File with iTunes

Here's how to make an MP3 file using the iTunes program available on all Macs.

CAUTION: If your music contains sounds copyrighted by other people, and you don't have permission to use those sounds, I'd think twice about uploading an MP3 of your music to a web site. That counts as publishing, and the copyright holder may hold you accountable for your use of their sound.

Choose iTunes from the Multimedia pop-up menu in the Dock.
Because of the way iTunes is set up in our room, this often will present you with an annoying series of licence and setup windows. Just agree to the license, and cancel the Setup Assistant window. Also, close the iTunes Tutorials window.
Choose Preferences from the iTunes menu, and click the General icon.
Click the Import Settings button. Make sure MP3 Encoder is chosen in the Import Using pop-up menu. The Setting menu lets you control the quality (and therefore size) of the MP3s you make.
Press OK to dismiss the Preferences dialog.
Make sure Music is selected in the LIBRARY list in the left part of the window.
Locate your stereo mix file. It might still be in the Audio Files folder of your DP project. Drag it from there into the main part of the iTunes window. Normally, you'll then see a big icon that represents your mix file.
Click once on this icon to select your mix file.
Choose Create MP3 Version from the Advanced menu. Soon you'll see another icon with the same name as your mix file. This is your MP3 version.
If you want, enter MP3 ID3 tag information, such as the song title and composer, into your MP3 file. To do this, select your MP3 file in iTunes, and choose Get Info from the File menu. Press the Info tab at the top of the window to see the information fields. Fill out at least the Name and Artist fields.
Drag the icon that represents your MP3 file from the iTunes window onto the Desktop.
If for some reason this doesn't work, you can find the MP3 file in your home folder, inside...
/Music/iTunes/iTunes Media/Music/Unknown Artist/Unknown Album/
Now work on making yourself known.