The melody of I Believe In You by Don Williams runs 378 notes across 47 bars, 4:09 long in G at 77 beats per minute. The tab sits low on the neck, mostly under the fourth fret, one note at a time — no chords to barre and no strumming pattern to keep up with. A piano backing track plays the chords and bass underneath, so the line you are learning sounds like the record even at half speed.
Prefer to strum and sing it instead? I Believe In You chords and lyrics.