"P" Composers
- Paine, T.
- Paladilhe, Emile
- Paganini, Niccolò
- Parker, Henry
- Patton, Abby Hutchinson
- Peabody, Jr. A. Jackson
- Pergolesi, Giovanni Battista
- Peters, William C.
- Petrie, H. W.
- Phelps, Edmond S.
- Phile, Philip
- Pierce, Charles A.
- Pierpont, James Lord
- Pike, Marshall S.
- Pinna, Joseph de
- Pinsuti, Ciro
- Pirani, Max
- Poldini, Ede
- Poulton, George R.
- Praetorius, Michael
- Pratt, Charles E.