The Sequence Information dialog
If your license level is below Pro, then "Waveform Only" will be your only choice here. With any media file except MIDI, you will see a waveform displayed when the sequence is opened.
If you have a Pro license, you can also choose to see the audio as a spectrogram (see the Audio Settings topic for examples). The spectrogram takes some extra time to calculate, so sequences will take a little longer to load (the amount of time depends on the speed of your computer and the length of the media file). For a 3 minute song on a fast computer, it should only add a few seconds to the load time.
This setting also impacts the Audio motion effect. If you choose "Waveform Only", then many of the options in the Audio effect will not work.
The date and time at which the sequence was created. This value cannot be edited.
If you modify a file that was created by someone else, you can enter your name here, if you wish.
For musical sequences, the artist who performed the song.
For musical sequences, the name of the song.
For musical sequences, the name of the album that the song is from.