Barbershop music is a style of a cappella singing that features tight harmonies and a distinctive sound. Some synonyms for "barbershop sound" may include "four-part harmony," "ringing chords," or "vocal quartet." Other terms that may be used to describe this style of music could include "close harmonies," "sweet chords," or "old-timey singing." Regardless of how it's described, the barbershop sound is a unique and timeless style of music that has been enjoyed by people for generations. Its popularity continues to endure today, as singers and fans alike appreciate the beauty and complexity of this classic musical form.