The first type: often appears in many popular songs. For example, Michael Jackson's "Heal the World" has this modulation technique in the second half of the song. In fact, I suspect that your book is about pop music. If you actually want me to just give examples of pop music, you can tell me and I can give you examples.

The second type: For example, in Scarlatti’s G minor Sonata K.108, the second section of the two-part form is converted to G major. In fact, sufficient work has been done for the modulation at the end of the first section. preparation. The sheet music is at the following link: Scarlatti K.108.

The third type: For example, the fourth piece of Schubert’s musical moment. The music score is at the following link: Schubert D.780 No.4.