A cadenza is a musical term for a SOLO performance, usually in an opera or concerto. It is typically performed by a SOLOIST, and can involve singing, playing an instrument, or both. The term 'SOLOIST' refers to a single performer, while 'SOLO' is a piece of music written for one performer. 'Solos' is the plural form of 'SOLO, ' and 'soloed' is the past tense of 'SOLO.' An ARIA is a type of SOLO song, usually with an operatic style.