•          Solfeggio (It) or  Solfege,
  is a technique for ear training. It is a method of assigning a syllable to every pitch/degree of a scale using the syllables

• (Do Re Mi Fa Sol La Si).

 Solfege was created in the 10th Century by Guido d' Arezzo to help monks to easily learn the chants for the mass. Solfege is a great tool for developing Relative Pitch.  It helps to improve  sight reading skills -

 not only in terms of singing but also on a music instrument.