The sheet of music paper contains several lines of musical notation. The visible notations appear to be a combination of musical symbols and some form of chord or harmonic indications, possibly in a simplified or shorthand form. Specifically, the following are visible:
The exact meaning of these notations would depend on the context or a specific musical system being used, but they generally indicate musical elements and possibly harmonic functions.
Answer: The visible notations include musical staves, bar lines, and symbols possibly representing chords or harmonic functions like 'M64', 'M53', 'b64', 'b53', and 'b6', along with small circles.