The upper is called the "treble" clef; the lower is the "bass" clef.
The five horizontal lines on which musical notes are written are called the staff. The lines and spaces represent different pitches, with each line and space corresponding to a specific note. The staff can be modified with clefs, which determine the pitch range for the notes written on it. In Western music, the most common clefs are the treble and bass clefs.
Clefs exist to make the notes easier to read, by placing the majority of them within the confines of each staff. If you used two of the same clefs, like the treble, the lower notes would exist solely on leger lines, which, the farther the get from the satff, the more difficult they are to read.
Treble, alto, bass, tenor, percussion. Treble and bass are most common.
Clefs are needed in music notation to indicate the pitch range of the notes written on the staff. They help determine the letter names of the lines and spaces on the staff, which in turn helps musicians know which notes to play. Different clefs are used for different instruments and vocal ranges to make the music easier to read and perform.
The standardly used clefs in modern and classical western music are treble clef, bass clef, alto clef, and tenor clef. Alto and tenor clefs are mainly used in vocal pieces but any have been used and can be found in just about any type of music for any part.
There are three main clefs used in music notation: treble clef, bass clef, and alto clef. Each clef indicates the range of notes that should be played by different instruments or voices. The clef used determines the pitch of the notes written on the staff, affecting how music is read, written, and performed by musicians.
A clef symbol is a musical notation that indicates the pitch of written notes. The most common clefs are the treble clef, which resembles a stylized "G" and curls around the second line of the staff, and the bass clef, which looks like a backward "C" with two dots positioned on either side of the fourth line of the staff. Other clefs, like the alto and tenor clefs, have distinct shapes suited for different vocal ranges and instruments. Each clef defines the pitch of the notes on the staff, guiding musicians in their performance.
The piano switches clefs at middle "C". It is not at the exact middle of the keyboard, however. The exact middle is the space between middle "E" and Middle "F". Middle "C" is two white notes to the left of that point.
P . Ge rard has written: 'Les clefs du marketing' -- subject(s): Marketing 'Les clefs du marketing'
I play every instrument in a normal band and these are the reasons I can think of: being able to read two clefs, two types- brass and woodwind, different notes, different ranges etc.
The clef determines where the notes fall on the staff. In a treble cleff the symbol circles the note G. In a bass cleff the symbol starts on and has two dots surrounding the note F. Different clefs put notes in different places.
Louis Ducreux has written: 'Les clefs du ciel'