Last night I watched the video lectures on delay effects. Then I experimented with the instructor’s recommendations. I learned that delayed echos of 80-90 ms can create a sense of depth (and warmth). So I experimented with this a bit.
It seems to work really well with the guitar, but not so well with my voice. So I’m definitely going to start adding this effect to the background music.
But I’m going to need to experiment further before I would be comfortable adding any effects to my voice.