If you would like to have additional songs to play while you are using the Progressive Harmonica Method, you may wish to obtain the Progressive Harmonica Supplementary Songbook.
It contains six sets of songs, with Part One graded for use after you have completed Lesson 8 of the Progressive Harmonica Method, Part Two for use after Lesson 11, Part Three after Lesson 18, Part Four after Lesson 20, Part Five after Lesson 21, and Part Six after Lesson 22. Many more favorite songs are included in the Progressive Harmonica Supplementary Songbook and a recording is available as well.