A chorus is a group of singers who perform together, usually in harmony. The term 'chorus members' refers to the individuals who make up the chorus. In this crossword, ALTI (4 letters) is an abbreviation for alti, which are high-pitched male singers. NAZIS (5 letters) is an abbreviation for sopranos, which are female singers with the highest vocal range. TENORS (6 letters) are male singers with a higher vocal range than alti. ALTO (4 letters) is an abbreviation for ALTO, which are female singers with a lower vocal range than sopranos. BASSES (6 letters) are male singers with the lowest vocal range. ALTOS (5 letters) is an abbreviation for altos, which are female singers with a lower vocal range than sopranos.