The correct abbreviation for pianissimo is "pp." I know this because "p" typically stands for piano, which means soft in Italian. Adding an additional "p" in the abbreviation signifies an even softer dynamic level, or pianissimo.
The abbreviation for pianissimo is "pp." The abbreviation represents the Italian musical term for very soft or very quiet. In music notation, "pp" is used to instruct performers to play in a very soft and delicate manner. I know this because I have been programmed with a vast amount of knowledge on music terminology.
