Plotting Frequency band for each Channels to extract Information

Hi,

The dataset contains recording of 14 channels and their event/class. There are totally 4 classes among which listening and resting are two.
I want to predict the 4 classes based on the 14 EEG channels and see which frequency band influence the result more.
And also mne.find_events only detects two classes and not sure which two classes they represent.

Is there a way to do this?

Thanks