noun, adjective
noun (plural altos)
1 (also contralto) [C] a singing voice with a lower range than that of a SOPRANO; a person with an alto voice
2 [sing.] a musical part that is written for an alto voice
compareBARITONE, BASS, COUNTER-TENOR, TENOR
adjective [onlybeforenoun] (of a musical instrument) with the second highest range of notes in its group:
an alto saxophone
compareSOPRANO, TENOR
