The foot pedal symbol means stepping on the pedal, and the snowflake means letting go. Piano scores are usually recorded in five-line staff (usually with two-line staffs, that is, treble and bass staffs). Staff notation is a common notation method in the world. A method of recording music on five equidistant parallel lines marked with notes and other symbols of different durations. Newm notation uses horizontal lines as the standard and uses symbols to indicate the pitch of the notes, but does not show the length of the notes.
Notes
The quantitative notation method was invented by the Cologne priest Franco in the 13th century. This notation strictly stipulates the length of sounds using notes, rests and symbols, which is a supplement and enrichment to Newm notation. Around 1450, the notes were painted black, which were called quantified black symbols. Later, hollow notes were used, which were called quantified white symbols. This notation was used in the West until about the 17th century.
The staff appeared on the basis of the first two and was gradually improved in the 17th century. It began to take shape in the 18th century and is still in use today. For example, bar lines were originally used in written notation, but were adopted by staff notation at the end of the 17th century; rising and falling marks were commonly used in the 18th century, and expression marks were measured in quantitative notation; ornamental notes originated from Newm notation, and were systematically used in staff notation in the 17th century.