Watch the Rainbow at Night: 4 online guitar lesson by TrueFire from Acoustic Guitar Explorations
Lesson Source: Richard Gilewitz's Fingerstyle Narratives
Bars 21-34 present an entirely new phrase or "phase" of the piece. Glide carefully up with the glissando on string 5 while falling into a partial bar position and then the pull-off on strings 4 and 2 for an effective and smooth transition. Measure 24 contains a brush stroke as well as a single note string 2 vibrato while holding string 5 stable.