p usually refers to weak syllables in music, also known as piano symbols. It means to play a note gently, such as on the piano, that is, to press the keyboard and release it gently. P is often used with F (strong syllable), and in music notation, words such as "mf" and "poco p" can express both strength and weakness.

p can also indicate a playing method, that is, playing by accompaniment. This way of playing is common in pop bands and jazz music. When the lead singer or musical instrument is solo, the accompanist can play with P, which not only keeps the rhythm, but also does not cover up the main theme.

Besides, in some musical terms, p also has a special meaning. For example, "pp" stands for ultra-weak syllables, requiring players to play at the lowest volume; "pizz" stands for plucked string playing, which is common in stringed instruments. In a word, in music, P has multiple meanings, which need to be understood by players according to specific music and playing methods.