New user confused, charts don’t play like original recordings

[chillbass]

Greetings.

I am beginning bass player and someone on another online forum recommended this app for practice purposes. I have just downloaded the smooth jazz song list that someone (thank you! my favorite genre) posted but when I clicked on for example Angela, Taxi theme, it doesn't sound anything like the actual song. Do I have to change any settings?

Also, when people upload songs here, if I mute the piano part and lower the drums and just let the bass part play, is that the actual bassline of the song? I'd like to try to play along with that and suppose I'll have to figure out what is being played by ear since the notes in the window are strictly guitar? Is that correct?

Thanks. I'm trying to read some of the directions that I'm finding online but since all of this is very new to me, I'm unable to process what I'm reading. Thanks for any suggestions.

Edited: typed wrong song name