The following song features a new time signature which is a variation on the Common time symbol, but this one has a vertical line through it W. This is called cut common time, or simply cut time. It is also called $ time and represents two half note beats per bar.
In this situation, each half note receives one count. Whole notes receive two counts, while quarter notes receive half a count.
Earlier in the book you learnt to play this song on the Diatonic harmonica in % time. There is always more than one way to notate a rhythm. Like %, Cut common time contains two beats per bar, but because eighth notes are used here instead of sixteenth notes, it is easier to read.
Since you already know how to play this melody on the diatonic harmonica, you should have no trouble with it on the chromatic. It is recommended that you learn as many songs as possible on both types of harp. Although the numbering is slightly different, almost everything else is the same if you are not using the slide.
Here are two more melodies to help you become familiar with the layout of the chromatic harmonica. They both sound best when played at a fast tempo, but learn them slowly at first and then gradually increase the tempo once you are comfortable with the notes.
This one is in the key of A minor which would be fourth position on a diatonic harp. Since no bending is required on the low notes of a chromatic, it can still be thought of as first position.