Tonic sol-fa, also known as Solmization, is a system used to teach singing by using syllables to represent the various pitches of a musical scale. In alternative musical settings, there are several synonyms for Tonic sol-fa such as solmisation, solfeggio, or solfeggio singing. These terms refer to the same concept of using a set of syllables to represent the pitches of a musical scale and make it easier for singers to learn and remember melodies. Other synonyms of Tonic sol-fa include Kodály method, the moveable do system, and singing using solfege. These methods have proven successful in aiding the ability to learn and master vocal performance in students of all ages.