Final answer:
Musical notes are the building blocks of music, and the combination of a quarter note, a whole note, and another quarter note creates a rhythm.
Step-by-step explanation:
Musical notes are the basic units of music, with specific names that are combined to generate tunes. In this case, the combination of a quarter note, a whole note, and another quarter note creates a musical rhythm. A quarter note is played for one beat, a whole note is played for four beats, and another quarter note is played for one beat.