Function forte_name 

pub fn forte_name(
    cardinality: u8,
    forte_class: u8,
    inversion: Option<i8>,
    inversional_equivalence: bool,
) -> Result<String, Error>

The set class’s Forte name, such as 8-15B: music21’s addressToForteName.

inversional_equivalence is music21’s 'tni' classification, which leaves off the A and B that tell the two halves of a pair apart.

Errors

When the address names no set class.