Final Cut Pro supports the audio file formats of AAC, AIFF, BWF, CAF, MP3, MP4, and WAV.
The Timeline is where all your video edits and arrangements of video and audio clips are performed. The Timeline can be found in the bottom portion of your Final Cut Pro session.
The “Music and Sound” icon resembles a musical note.
The Music and Sounds browser will allow you to search for a specific title, preview songs, and select multiple songs to add to your video.
This procedure will place a copy of the music file in your Bin, which contains all the other media files you have imported into your project, such as video clips. The Bin is the section shaped like a square in the upper-left corner of your Final Cut Pro project.
A Sequence is a section that allows you to edit portions of your video such as text, audio, and video and is a small portion of time that exists within the Timeline. The Sequence section is located directly to the right of your Bin.