Musical notation is a complex system of symbols that represents pitch, duration, and expression in music. It includes elements like the staff, clefs, notes, rests, and time signatures. Understanding these components is crucial for reading and interpreting musical scores. Score reading involves decoding various musical elements such as key signatures, dynamics, and articulation markings. It requires familiarity with different instruments, score layouts, and practical skills like sight-reading. Mastering these concepts enables musicians to accurately interpret and perform written music.