This recording includes everything that the soprano chorus might be expected to sing. The standard Ricordi score of the opera is ambiguous about the term 'soprano', which sometimes includes the altos. The ZIP file includes 'soprano 1', which is of course the top female voice at any point, and also 'soprano 2' which is the second line down when the female voices are split into 3 or 4 parts, and therefore not the same as what the score calls soprano 2 which is often (not always!) alto. Pricing is based on soprano 1 alone.