Within a beat, a single sixteenth note can be in first, second, third or fourth place (see exercise 1 - 4 above). This strummed sixteenth appears in the notation with a note head, while a muted sixteenth is marked by a cross.
The following exercises 5 - 14 were formed from all possible combinations of the rhythms 1 - 4. For example, exercise 5 corresponds to the combination of rhythm 1 + 2. This rhythms can be heard with a mouse click on the notation as a drum beat with clapping.
In the video the rhythm guitar plays the whole piece using the chord change | A7 | C#m7 | . To count the rhythm, the measure is numbered with | 1 e + a | 2 e + a | 3 e + a | 4 e + a | .
The 16th note rhythm exercise is included in the Guitar Lovers Studies PDF or as play along track in the Jamtracks PDF which feature high graphic resolution for printing and integrated sound.