Playlist export?

Hello MarshallK234,

We would like to see how we can help you with adding songs to your iMovie project. Check out this link for the different options avaiable to add songs to your project: Add songs and other audio files to your iMovie project - Apple Support

"Add songs or other audio files on Mac

In iMovie for Mac, you can use the iMovie media browser to import songs from your music library in the Music app. You can also drag audio files right into your timeline from the Finder.

Add songs or other audio files using the media browser

You can use the media browser in iMovie to add songs that you’ve downloaded to the music library on your Mac, as well as songs and other audio files that you've added to your music library.

1. With your project open, click Audio at the top of the window, then click Music in the Libraries list, then browse selections. If you can't find a particular song, learn more about why it might not be available. 
2. To preview a song, click the play button next to each song. You can also select a song, click in the waveform at the top of the media browser, then press the Spacebar to preview.
3. When you’ve found the song you like, drag it from the media browser to the timeline:

• To attach a song or sound effects to a specific video clip, drag it under the video clip so a bar connecting the clips appears. If you move the video clip, the attached song will move with the video clip.
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• For background or theme music for your movie, drag songs to the music well, indicated by the musical note icon  at the bottom of the timeline. The song won’t move if you move any video clips in the timeline.
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If you only want to use a part of the song, select a range in the waveform at the top of the browser so the range has a yellow border, then drag the range to the timeline. You can shorten or extend a range selection by dragging either side of it."

Cheers!